There is something quietly powerful about a handwritten letter. A looping signature, a pressed nib mark, the faint scent of old paper — these are the things that survive long after we have lost the voice that spoke them. But the very materials that make a letter so precious are also remarkably fragile. Ink fades, paper yellows, damp creeps in. With a little care, though, you can display your treasures openly and still keep them safe for the next generation.

Why Display Does Damage

Most damage to displayed correspondence happens slowly and invisibly. Ultraviolet light is the chief culprit: it breaks down the chemical bonds in inks and dyes, so a letter that once read in deep sepia gradually turns pale brown. Even ordinary daylight contains enough UV to cause fading within a few years. Heat from a radiator or a sunny windowsill accelerates the process, while damp air encourages mould, foxing (those rust-coloured speckles) and the softening of old glue.

Acidity is the second enemy. Standard cardboard, cheap mount board and ordinary masking tape are all acidic, and they will stain and embrittle paper over time. The good news is that museum-quality materials are widely available and surprisingly affordable for a single frame.

Choosing the Right Frame and Glazing

When framing a letter, aim for conservation standard rather than decoration first.

• Glazing: choose glass or acrylic with a UV-filtering coating, ideally blocking 98–99% of UV. Ask for it by name — many framers keep it in stock. Acrylic is lighter and safer on a wall that might be knocked, but glass is less prone to scratching.
• Mount board: use 100% cotton rag or buffered, lignin-free board with a pH of 7 or above. This is what sits between your letter and the frame, and it needs to be inert.
• Backing: a solid acid-free backing board, sealed at the rear with a dust paper, keeps insects and dust out.
• Spacers: if the ink is thick or glossy, a small rebate spacer keeps the paper from touching the glass and stops ink transferring to it in humid weather.
• Mat width: a generous mount of at least 5–7 centimetres gives the letter breathing space and adds a satisfying sense of occasion.

Skip non-reflective glass if it means sacrificing UV protection — clarity matters less than the survival of the ink.

Mounting Without Harm

Never use Sellotape, masking tape, glue sticks, spray adhesive or dry-mounting. All of these are effectively permanent and destructive. Instead:

• Hold the letter in place with paper photo corners made from acid-free card — the paper rests inside, unharmed.
• For heavier or brittle sheets, use traditional hinges: narrow strips of Japanese tissue attached to the back of the letter with a cooked starch paste or methyl cellulose, then to the mount board.
• Make sure the letter is not tightly pressed. Paper needs to be able to expand and contract slightly with changes in humidity.
• If the letter is folded, a conservator can relax the creases — do not try to press it flat yourself.

If the item is genuinely irreplaceable, consider having it professionally mounted. It is a modest cost for peace of mind.

Where to Hang It

Position matters as much as the framing. Choose an interior wall away from windows — a north-facing wall or a hallway is ideal. Direct sunlight, even for an hour a day, is the single fastest route to a faded signature. If you want the letter visible in a sunny room, arrange it so the light falls indirectly, or use a curtain or blind during the brightest part of the day.

Avoid kitchens and bathrooms altogether; steam and fluctuating humidity are unkind to paper. Damp cellars, basements and unheated spare rooms are equally risky. Aim for a stable, dry room with relative humidity in the region of 40–60% and a steady temperature. Never hang a frame above a radiator or in the path of an air-conditioning vent.

Rotate, Rest and Store

Even with good glazing, light exposure accumulates. The simplest way to protect a collection is to rotate your displays. Hang two or three pieces at a time, then swap them every three to six months. The rest live in the dark, recovering nothing but losing nothing either.

• Store unframed letters flat in acid-free boxes, interleaved with unbuffered tissue for very old or fragile pieces.
• Keep boxes in a cool, dry, dark cupboard — not a loft, garage or damp basement.
• Check your collection once or twice a year for foxing, silverfish or mould, and isolate anything that looks affected.
• Keep a simple written record of what is on display and when it was last rotated.

Small Habits That Preserve the Story

Handle framed letters rarely, and when you must, wash your hands first and hold the frame by its edges. Dust glass with a soft, dry cloth rather than sprays, which can seep behind the rebate. When you take a letter out of its frame, work on a clean, dry surface and keep food and drink well away.

None of this is fussy or difficult. A letter displayed with the right glass, the right mount and a sensible position will outlast all of us. And there is comfort in that: the handwriting stays dark on the page, the date stays legible, and the person who wrote it remains present in the room. That is what framing is really for.