1920 Article Science Invention Patents Electrical Phonograph Spark Plugs SI1 Humorous General Tryon

General Tryon

DeLong tracked and recorded extensive scientific data

John Peter

Artist signature in print - top center of image

Bartending

1920 Article Science Invention Patents Electrical Phonograph Spark Plugs SI1 Humorous General TryonThis is an original 1920 one page article (one single sided page) of a variety of scientific invention patents. CONDITION This 91+ year old Item is rated Near Mint Very Fine+. Light aging throughout. Light wrinkling. No natural defects. Light scuffing. No tears. No water damage. Please note that there is print on the reverse. Product Type: Original Print Article; Black White Grade: Near Mint Very Fine+ Dimensions: Approximately 7. 5 x 10. 75 inches;