1960's General Telephone Company Of The Northest Manuels Textbooks Lot of 4

1960's General Telephone Company Of The Northwest Manuels Textbooks Lot of 4 This lot includes: General Telephone Company of the Northwest #100 Basic Electricity Glossary of Telephone Terms General Telephone Company of the Northwest: Symbols Plant Training The Step-By-Step Dial Telephone System: Central Office Equipment Lesson #3 Good - There is some shelfwear on the cover/corners and some discoloration. Clean copies with no writing or highlighting.