i had forgotten all about 36" fabric. that's what i learned to sew on. so let's see. that was in 1956. the 45's were just starting to come out, but were still hardly available. so if the fabric is 36" i'd say older than 1956. that's OLD :P
and the price could have been a pre-cut price. i remember a Cheap John's store that had precuts (end of bolts) that were 25 cents and up.