The Melinex "spider" mount is detailed in my book,
Mounting Objects with Clear Film, which may be available from a supplier of books by Columba Publishing Company (also the publisher of the late Vivian Kistler's books). Lion, perhaps?
I have prepared an illustrated instruction in a .pdf file named "Drawing-Clear Film Mounts.Coin-Medal-object". This forum does not allow attachment of .pdf files, but if you care to email a request for that file to me at
artframe@att.net, I will reply with the attachment .
These Melinex "spiders" may be easily trimmed with an X-Acto knife to fit any size/shape medal or coin. Simply trace the shape on a scrap of matboard, tape on a piece of the film, and trim on the lines. Mount the medal using the fall-out, and use the perimeter cut to locate the slots to pass the "spider legs" through the mat.
Lately I have been using my Valiani computerized mat cutter to produce the Melinex "spiders" and cut the slots through which the legs pass to the back of the board. Any size/shape medal may be scanned/photographed and imported to Corel Draw or another design program. Line-trace the shape, add "spider legs" and convert the image to a cut file. CMC cutting may not be worth the effort for a single odd-shaped medal, but for multiples it is a great time saver, especially since the layout of the mounting board may be done on the CMC, as well.
I have a template in .cdr format (also not allowed for attachment here) to mount circular medals, with the circle at 1/3 of total height, so the template may be easily scaled to any size. The slot pattern is included in the template file, so it may be scaled along with the "spider". The slot cuts are grouped and may be easily extracted for separate cutting after scaling. I recommend through-cutting narrow V-grooves on the back of the board for the "spider legs". Melinex is too flimsy to cut directly, but it works perfectly if you sandwich a piece of the film between two 4-ply matboards. If you request "Medal-Third ofTotal HT", I will send that file, as well.
Cheers, Jim