Hm, according to the guy I got it from it's from -78. He gave me this link, but I haven't verified it myself.
The rod is very light for being a 6wt. It has a deep action with very fast recovery. The butt section is thin, and the cork grip is extremely thin. This gives the rod a very unique character. I can't wait to get it out in the park tomorrow. The slide rings is Orvis type, very minimalistic. The guides are black and the stripper is in white plastic. Butt over tip ferrule, spiral bands on smake guides. Cork quality not so good.
Anyway, it's a charming rod!