Digging through old GD's:
1974 p.224:
-W wide view scopes introduced
All steel-no more plastic
1974 p.225:
Clicks eliminated, dial mark = 1/4 min for 4x and higher
1979 p. 174
Micro Trac for all 1 inch scopes, introduced on T-models last year.
I have only looked at a few of the scope specs, but they seem to not change as often as they should to match new introductions, for example, the new, heavier all-steel scopes. The 1974 V9 specs are 13 oz, V9W at 19 3/4 oz. I doubt that eyepiece change is almost 7 ounces. They don't show AO versions, either.
There is a high-priced scope book by Nick Stroebel (sp?) that might be better for historical information. I have only Bob Bell's scope book which seems to be a summary of his GD articles for the history part. Little new information not in the GD.
Bruce
