Fireman are the 61/63/64 the years they were made? Unfortunately I believe I have a copy not an originalRe; FN FAL Para, 50.61, 50.63, or 50.64. The FN is short for
Fabrique Nationale, which is a company in Belgium that invented the FAL rifle. Para is abbreviated "paratrooper" folding stock variant. If this you have one of those, I'm interested.