flamin'trek
Likes Bikes and Dirt
This. There are many knowledable types in the Retro biking section there. At the end of the day does it really matter when it was made. If you like it and the price is right, hand over some cash and throw a leg over.I am certain the folk on the BNA forums would be able to answer this! I believe there's a whole thread on Malvern Star appreciation with some very knowledgeable people in there.
Shameless plug: Vintage Manitou 2 forks