Lot of 9 Vintage Mathematics textbooks hardcover 1948 to 1975

RADIO EXPERIMENTAL CIRCUITS MANUAL NO 72 RARE VINTAGE 1948

MODERN BATTERY RECEIVERS MANUAL NO 71 RARE VINTAGE 1948

FREQUENCY MODULATION RECEIVERS MANUAL NO 68 RARE VINTAGE 1948

RADIO TEST EQUIPMENT MANUAL NO 73 RARE VINTAGE 1948

Vintage 1948 Gregg Shorthand Anniversary Edition John R Gregg Hardcover Book

Vintage Nitrocellulose Handbook 1948 Hercules Powder Company 70 Pgs

1948 Vtg Handbook of Chemistry and Physics 30th Edition RARE