1934 Print Gondola Hot Air Balloon Science Experiment Apparatus Valve Tube NGMA5 SEP4 It is printed on an

It is printed on an exceptionally lovely textured paper

Plates by the Record Engraving Company

The ad has a wonderful illustration of two children cleaning the bathtub

This is an original 1906 halftone print of Camels in the desert

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1934 Print Gondola Hot Air Balloon Science Experiment Apparatus Valve Tube NGMA5 SEP4 It is printed on anThis is an original 1934 black and white halftone print of an apparatus, consisting of tubes and flasks of chemicals, that was used to check the amounts of carbon dioxide and oxygen in the air globes when three men were sealed in it and when the device for removing the carbon dioxide was in operation. CONDITION This 79+ year old Item is rated Very Fine ++. Light aging throughout. No creases. No natural defects. No surface rub. No tears. No water