[BaltOrioles]

The Boy Scouts sell a plastic sheet for patches that works well for odd sizes. It is a 6 pocket sheet, with the pockets 3 1/2" x 4". The sheets fit into regular binders nicely. I use them for the round MSA disc cards from the 70's, Dixie Lids from the 50's and some other odd size cards. Works great. The item number is #33139 and around $5.00 for 6 sheets. You can get them at most Boy Scout stores.