Hello, I have the following ORIGINAL Collins Manuals for sale. All are in very nice condx and prices INCLUDE postage to the CONUS. 75S-1- $15 75S-3B/3C- 15 October 1963- $25 30L-1 with addendum sheets-2nd edition 15 June 1961- $25 312B-4- $13 All four for $65- postpaid. Tnx, 73, Joel- AE2JL