RFI: Imperial Ireland Stainless NRA folding pocketknife

[sittinbackinthecut]

New to these forums. Have an old Imperial folding pocketknife with "NRA" etched on the blade (maybe it was a promotional item for the National Rifle Association?), and "Imperial IRELAND STAINLESS" stamped at the base of the big blade. Cannot recall when or where I obtained this knife, but it seems pretty sharp and sturdy and I'd like to hear if anyone could give me any info on it, like how old it is or anything at all. TIA
-Curious noob knife collector

jpgs:

http://postimg.org/image/6ea1euqbt/

http://postimg.org/image/o7d5djuqj/

http://postimg.org/image/u1wtsm26l/