Store C21 Shicato HTML: A Collector’s Guide to Vintage Hair Accessories

When a collector mentions "C21 Shicato" in the context of vintage hair accessories, they are usually referring to a specific archival storage system developed in the late 1990s for cataloguing small, delicate objects like combs, slides, and barrettes. The term itself is a portmanteau — "C21" denotes the 21st century archival standard, while "Shicato" is an acronym for Silk, Hair, Ivory, Celluloid, Acetate, Tortoiseshell, and Other organics. Understanding how to store these pieces using the C21 Shicato method is not merely about preservation; it is about respecting the craftsmanship of the original makers and ensuring that a 1920s French celluloid comb or a 1950s British acetate slide remains as vibrant in 2040 as it was in 1955.

Why the C21 Shicato Method Exists

Most vintage hair accessories are composite objects. A single Edwardian tortoiseshell hairpin might have a bone core, a shellac finish, and a tiny brass spring. Throw that into a plastic box with a silica gel packet, and you invite disaster. The C21 Shicato protocol was formalised by a small group of museum conservators and independent collectors in London and Paris who were tired of seeing irreplaceable pieces degrade because of improper storage. They published a loose set of guidelines in 1999, and the method has since become the quiet standard among serious British collectors who attend fairs at Portobello Road or the Vintage Hair Accessories Society meetups in Bath.

The core insight of Shicato is that each material class requires a different microclimate. Silk ribbons and velvet bands need stable humidity and no light. Celluloid and early plastics demand ventilation and separation from metal. Ivory and bone require slight moisture but no contact with acids. The C21 framework adds a digital layer: a simple HTML index card (hence the "HTML" in the name) that travels with the physical object. This is not a complex database — it is a single-page HTML document stored on a USB drive or printed on acid-free paper, listing the object's material class, storage date, and any conservation notes.

Building Your Own C21 Shicato Storage System

You do not need a museum budget to implement this method. What you need is a clear understanding of your collection's material composition. Start by sorting every piece into one of the seven Shicato categories:

• Silk: Ribbons, grosgrain bands, velvet-covered combs. Store flat in unbuffered acid-free tissue paper. Never fold a silk ribbon — roll it around a padded cylinder.
• Hair: Pieces made from real human or horsehair, such as Victorian mourning brooches or hair wreaths. Keep in a dark, dry environment with no direct contact with wood (wood emits acetic acid).
• Ivory: Genuine elephant ivory, walrus tusk, or bone. Requires slightly higher humidity (45–55%) to prevent cracking. Wrap in pH-neutral paper with a small moisture buffer.
• Celluloid: Early plastic, often imitating tortoiseshell or ivory. Highly flammable and prone to outgassing. Store individually in breathable cotton bags, never sealed in plastic. Keep away from metal — celluloid can corrode brass and steel.
• Acetate: Later plastic, used heavily in 1950s and 1960s hair slides. More stable than celluloid but still sensitive to heat. Store flat, away from direct sunlight.
• Tortoiseshell: Real hawksbill shell (rare and restricted). Extremely sensitive to dryness — maintain 50–60% humidity. Wrap in unbuffered tissue and never use essential oils or polishes.
• Other organics: Wood, horn, mother-of-pearl, bakelite. Each has specific needs. Wood requires stable humidity; horn should be stored away from heat sources.

Once your pieces are sorted, you need a container. The C21 standard recommends archival-quality corrugated plastic boxes (polypropylene) or museum-grade cardboard boxes with a neutral pH. Do not use wooden boxes, shoe boxes, or standard plastic storage tubs — these off-gas acids that accelerate degradation. Within the box, use dividers made of archival foam or acid-free cardboard to keep pieces from touching each other. A celluloid comb touching a silver hairpin can cause the metal to tarnish and the celluloid to discolour within months.

The HTML Index Card

The "HTML" part of C21 Shicato is surprisingly simple. Create a plain text file with a .html extension that contains a table listing each item in the box. A typical entry looks like this:

• Item: Art Deco celluloid hair comb, amber tone, ca. 1928
• Shicato class: Celluloid
• Storage date: 12 March 2025
• Condition notes: Minor crazing on reverse, stable. No metal contact.
• Location: Box B, slot 4

Print this file on acid-free paper and store it inside the box. Keep a digital copy on a USB drive or in a cloud folder. This is not about being a digital archivist — it is about having a quick reference that prevents you from opening a box and forgetting what is inside. When you acquire a new piece, update the HTML file. When you sell or trade a piece, the HTML card goes with it. Serious buyers in the British vintage community now expect this documentation, especially for high-value items like early 20th-century tortoiseshell combs.

Common Mistakes Even Experienced Collectors Make

I have opened many a vintage collector's storage box and found the same errors repeated. The most common is using silica gel indiscriminately. Silica gel is a desiccant — it pulls moisture out of the air. For a silk ribbon or an ivory hairpin, that is disastrous. Ivory needs moisture to remain flexible; in dry conditions it develops hairline cracks. Silk becomes brittle and splits. If you must use silica gel, use the type that maintains a specific relative humidity (usually 50%) and replace it regularly. Do not use the little packets that come with electronics — those are designed to keep things bone dry.

Another frequent mistake is storing hair accessories in original vintage boxes. I understand the appeal — a 1930s celluloid slide in its original cardboard box feels authentic. But those boxes were not made for long-term preservation. The cardboard is often acidic, the glue degrades, and the box may contain residues of old perfumes or hair oils. Always transfer the piece to archival storage and keep the original box separately, if you wish to retain it for display or provenance. For more detailed guidance on handling specific materials, our earlier article on How to Store Vintage Hair Accessories: Material Guide & Preservation Tips covers the basics of pH-neutral paper and climate control.

Adapting C21 Shicato for Modern Wardrobe Integration

One of the questions I hear most from readers is: "How do I store a vintage piece that I wear regularly?" The C21 Shicato method works for active use as well as long-term storage. If you wear a 1950s acetate hair slide every week, it does not need to be sealed in an archival box — but it does need a dedicated spot in your dressing table drawer that is lined with acid-free paper and kept away from heat, humidity, and direct sunlight. When you are not wearing it, place it in a small cotton pouch (never velvet or silk — those can shed fibres and trap moisture).

For pieces that you alternate seasonally, such as a velvet bow clip for winter or a light tortoiseshell comb for summer, rotate them in and out of your C21 Shicato box. The HTML index card helps you track where each piece is. If you have a particularly delicate item, like a 1920s celluloid bandeau, consider wearing it only for special occasions and returning it to storage immediately after. The less handling, the longer it lasts.

For those who enjoy pairing vintage accessories with contemporary clothing, the Caramel Pearl Bow Hair Clip is a wonderful example of a piece that benefits from careful storage — its pearl inlay and silk bow require the same gentle treatment as any true vintage piece. Keep it in a separate compartment away from metal clasps or zippers.

A Practical Worked Example: Storing a 1960s Acetate Hair Slide

Let us walk through a real scenario. You have just acquired a 1960s acetate hair slide in a bold tortoiseshell pattern — the kind that was popularised by British high-street brands like Biba and later reinterpreted by independent makers. It is in excellent condition, with no cracks and a bright, warm amber colour. Here is exactly how to store it using the C21 Shicato method:

1. Clean it gently with a soft, dry microfiber cloth. Do not use water, alcohol, or any cleaning solution. If there is residue, consult a conservator.
2. Classify it as Acetate. Write this on your HTML index card.
3. Wrap the slide in a single layer of unbuffered acid-free tissue paper. Do not use bubble wrap or plastic.
4. Place it in a polypropylene archival box, in a compartment that is not touching any metal or other plastic pieces.
5. Store the box in a room with stable temperature (18–22°C) and relative humidity around 40–50%. Avoid attics, basements, and bathrooms.
6. Update your HTML file with the storage date and condition notes. Print a copy and place it in the box.

That is it. The entire process takes ten minutes and will keep your slide in wearable condition for decades. The same steps apply to a 1930s celluloid comb, a 1950s velvet headband, or a 1970s bakelite hair claw. The only variable is the material class, which determines the wrapping material and humidity target.

The C21 Shicato method is not a rigid dogma — it is a flexible framework that adapts to your collection. Start with one box, one HTML file, and a handful of your most treasured pieces. As you add more, you will develop a rhythm. The pleasure of opening a box and finding a piece exactly as you stored it, with no discolouration, no warping, no surprises, is one of the quiet joys of being a thoughtful collector.