1940s Radiotron Valve Data Handbook
142 Doubled-Sided Pages in Split Pin Binder
(Dates in the handbook range from 1937 to 1949)
85 Loose Double-Sided Pages 
(Date range 1940 to 1949)
Made in Australia
Sheets measure 110mm x 170mm
Total weight 360gm
Vintage pages have varying degrees of creasing and wear. 
Some are really good, most are pretty good, while others are worn. 
No pen or pencil marks evident. 
Split-pin paperback binder has some creasing and wear. 
Please see the photos as they form part of the description. 
Will be well wrapped for shipping.