I can't find any information on this Forster Patch Cutter. I think it might be rare or hard to find. I have a letter that has suggestions for the use of Forster Muzzleloading Accessories. Here is what one line saids; 1 1/4 inch patches made using the forster patch cutter are suitable for use with 45, 50 and 54 caliber. This is brand new. How old is this?