Storing Large Medals

Frame-a-coin flips look like a good idea to me, I wonder if there's a UK supplier ?

At the moment, I'm using campaign medal flips which are oblong but some of the medallions I have are 6 inches or more in diameter.

I have struggled with the same dilemma. To the best of my knowledge the frame a coin flips that I've seen are softened vinyl and thus likely contain PVC.

I have been using two different products with some success.

First are blue leatherette boxes (think flip open jewelry style boxes) with impressionable material inside into which you can press a medal and it will take its shape.
The impression part does work to a certain extent. Just be sure to center and orient the medal the way you like first. I would recommend wearing gloves and pushing on the edges of the medal when making the impression. These work well for medals that don't travel much, but if you carry them around to shows, etc the medals will tend to shift about inside.

They come in 3.5 inch square (model number 7916) or 6.5 inch square (model number 7917) versions and are available from most coin supply places.

The other product I recently tried are Lighthouse Quadrum XL holders which come in sizes from 42mm to 58mm. Simply get the size closest to the diameter of your medal (if your medal is between sizes round down) and carefully place the medal in the soft inert insert and then click the hard plastic covers closed around it. You can even reopen it later if desired. There are also three ring binder style pages made just for these. I recently put a 12 piece set of medals into a single page this way and put it in a nice binder and it's very presentable. The caveat is that these cannot hold medals thicker than about 4.5 mm. Many medals are within this range, but very high relief medals would not fit. These are also available from most coin supply places.

If you move your collection about a lot there are advantages to the Quadrum XL for those medals that will fit. However, if you prefer not to encase them in plastic or you have much larger medals the blue boxes may be more your style.

One last note. While both of the items mentioned above appear to be inert I make it a practice to check on items in storage at least once per year and replace the holder if I see any sign of deterioration of the holder in order to avoid damage to the medal. Until someone makes a pure mylar holder of sufficient size we just have to check on them now and then.

If you try either of these or find another solution please share your experiences. Hope this helps!