1943 Ad Bell Telephone Systems High Vacuum Tube Wartime H.D. Arnold WWII YPM1 XGZ7 This is an original 1926

This is an original 1926 photogravure of an oat field in the Province of Alberta

This is a small original 1928 black and white print ad for the Good Luck Jar Rubbers from Boston Woven Hose & Rubber Company located at 24 Hampshire Street

Balkan Mountains

This is an original 1934 Great Depression Era color print ad for Body by Fisher automobiles

This is an original 1938 black and white print ad for Vitamins Plus

1943 Ad Bell Telephone Systems High Vacuum Tube Wartime H.D. Arnold WWII YPM1 XGZ7 This is an original 1926This is an original 1943 black and white and grayscale print ad for the Bell Telephone Systems, featuring the first effective high vacuum tube, for amplifying electric currents developed by Bell Laboratiries and Dr. H. D. Arnold. CONDITION This 70+ year old Item is rated Very Fine +. No creases. No natural defects. No surface rub. No tears. Heavy water stain bottom. Product Type: Original Print Ad; Black & White Grayscale Grade: Very Fine +