Dual Snorkel Air Cleaner Found

Hello to all members. I am a new member to this site. At a local car show/swap meet, in my area, I purchased a dual snorkel air breather assembly with box. This assembly is the long tapering snorkels. The box is dated 1969. The part number tag is still stuck to flap. It reads AC 1 6485257. Another tag gives the dealers name as Tom Bells Chevyland Memphis TN. This assembly includes an AC filter and appears to be unused,as does the entire assembly. <font color="black"> </font> If anyone happens to have knowledge of this part numbers application please respond. Thanks