Three vintage booklets that are in acceptable condition as they have a lot of wear. 

HOME FREEZING OF FRUITS AND VEGETABLES - U.S. Department of Agriculture (USDA) 1946, 24 pp

CONDON'S COMMON SENSE CULTURE BOOK AND CANNING GUIDE - Condon Bros. Seedsmen, 64 pp, no date but believe it to be 1930's. 

NATIONAL PRESSURE COOKER - MODERN GUIDE TO HOME CANNING - 96 pp, 1945