1940 Print Wright Field Riverside Ohio Heim Blood Chart Hemoglobin Aviation FZ2 TSM2 This is an original 1917

This is an original 1917 halftone print showing "Colonel in 1914

This is an original 1935 photogravure of a valley in the Aurs Mountains of Algeria

This piece was illustrated by Hebden

Neo-Gothic

This is an original 1907 halftone print of the Siberian highway

1940 Print Wright Field Riverside Ohio Heim Blood Chart Hemoglobin Aviation FZ2 TSM2 This is an original 1917This is an original 1940 halftone print of Dr. J. W. Heim taking a blood sample of a pilot at Wright Field in Riverside, Ohio. The caption writes, "This chart illustrates the atmosphere from the flight surgeon's point of view. Below, Dr. J. W. Heim takes a blood sample in a low pressure chamber at Wright Field, where the chart conditions are mechanically reproduced"CONDITION This 71+ year old Item is rated Near Mint Very Fine+. Light aging throughout.