ML 161.1 vs 161.2

Ron Thoman rgthoman at
Tue Feb 25 16:40:34 EST 2003

Can someone tell me the difference between a later 161.1 (say a 1950s
edition - the Guide says 161.1 ran from 1929-1954) and a 161.2.  I have one
of each (according to catalogs in the back), but I can't see a difference. 
So I'm curious about why 161.1 became 161.2.

Ron Thoman
rgthoman at

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