Could this possibly be a 1971 model.Both the '71 and '72 are made of shedua with black glass,58" a.m.o.,both could have the accessory bushing.One thing that makes me think it may be a '71 is the patent numbers.I think that 1971 was the last year that Bear listed all three patent numbers on the lower limb.Then in 1972 they started to just list the one number.It appears that this bow has the three patent numbers.I don't have any post '71 Bear bows here to look at but that seemed to be a determining factor.Also I believe the flat coin was last used in 1971 then the raised medallion came into use in 1972.There are no pics of the coin/medallion side of the bow to verify this.But my guess is it's a 1971.