For Free: 1970's Eisentraut Frame Receipts

I realize this could be a long shot, but if anyone has a mid 70's Eisentraut, ranging from 1972 through 1977 (most receipts are from '75), *please send me a PM*.

I have a small pile of receipts, most of which are on Eisentraut letterhead receipts. Others are on generic receipts with Eisentraut...