I bought Mr Murphy's book back about 1986 or so . It's very good info . Basic model variations with serial ranges and markings . Much info derived from his own observations and survey reports . Some early factory end of year inventory reports . It's well worth the price ! /forums/images/graemlins/cool.gif
Ahhh... I think I missed that when I looked before! I agree with you, Murphy's book is the best one available now. I think there is considerably more, newer, information available out there though and a good book would be in order. Do you collect the New Services??? I don't remember you mentioning them before??? I have 25 or so in my collection... Are you collecting info on them? If you are, I would be happy to share... Let me know.