Why didn't I say no!!

[BigBazza]

Hi all

Had a lady in just before Xmas with some silver banknotes to frame (pic attached), currently in an injection moulded plastic display case, she's open to any nice display and frame I see fit to use but it needs to be glass on both sides as some of the coins are double sided.

I'm pretty much at a loss as to how to mount these so can any of you medal/coin experts out there help? I just can't put it off any longer

Any suggestions would be greatly appreciated.

Thanks

Amanda

[iamzero]

Couldn't you cut a piece of mount board exactly how the moulded case is with the holes cut out too so the coins could sit within and sandwich the lot either side with glass? Hope that makes sense?

[prospero]

If she wants to see both sides and the edges, it's getting very close to the impossible.

If you want to keep them all in pristine condition then any gluey attachments are a no-no. And mechanical fixings will look unsightly.

One way is to cut two reverse-bevel mounts joined back to back so the notes are a push fit into the little V cavity thus created. Easier said than done. The tolerances are virtually nil. Can you cut 400 bevels +/- a few microns? One a bit off and you are knackered. A CMC might do it, but then you have the small job of locating all the notes in their respective holes.

Don't think any Mylar contrivances would work.

If they were of no special consequence then getting the lot encapsulated in resin would be good. That process isn't exactly going to be cheap. Or reversible.

I tricky one and no mistake.

[pramsay13]

Was your donor card really the first thing to hand to give scale
There was absolutely no need to say no, simply add a few zeroes and let them do it for you.

[prospero]

Great Idea!!!

Get the whole lot professionally photographed back and front and frame the photographs.

Seriously.

[Roboframer]

How thick are they, a couple of mm, like coins?

Couldn't you cut a piece of mount board exactly how the moulded case is with the holes cut out too so the coins could sit within and sandwich the lot either side with glass?

"Exactly" even with a CMC wouldn't be that easy, cutting yes, but not plotting; manually I don't think I'd want to know!

CMC-less I'd be suggesting cutting out the backs of those apertures that need to show both sides (unless they're all already cut right through) and framing the thing as it is with glass or acrylic each side. ............ or subbing out the mount-cutting bit to someone with a CMC.

With a CMC the nice box can be kept should they ever need to be sold/passed on as they came. The coins could be mounted so they could be (just) seen completely - i.e. float mounted, but that would be a PITA, which is fine if the customer's willing to pay for the time. Without photos/diagrams that I don't have it might take longer to describe than to do - sorry - but Melinex anyway.

"Easiest" way is to cut three multi-aperture mounts, the centre one out of a board the thickness of the coins with 90 degree cut apertures to the EXACT size of each to make a squuueeeeze in fit - also known as an engineering fit.

The other two mounts would have the apertures cut 1mm smaller to go juuuuuuust over the coins and would be bonded to the centre mount - you could opt to show the backs of all the coins or just the ones that need to be, but that might look odd.

[Not your average framer]

There are companies with the resources to cut a material called plastizote into thin sheets to your own reqired thickness and for the thickness you require, the price is probably not going to be a serious issue.

If you copy the existing layout shown in the display case in your picture, I think that any small tolerance issues will not be all that noticable, so this might be quite easy to do.

If you lay these coins in place onto the plastizote, with a sheet of glass underneath and very carefully (using the coins to guide the blade) cut through the plastizote and after removing the waste plastizote press the coin into the resulting cut out, I think that this will work.

When finished, the piece of plastizote, complete with the inserted coins can be placed between two pieces of glass and framed. I hope that this makes sense.

[Trillian]

I've seen these frames advertised in Stamp & Coin Mart, and often wondered if it would be possible to replicate it:



The objects are held in place by two sheets of silicone. I'm not sure if there is a patent on these frames, which if there is, may prevent you from using silicone sheet to encapsulate the coins. Might be worth looking into though? Unfortunately most coin display systems are designed to store the coins individually in horizontal trays.