1922 Ad Aluminum Chlorid Gulf Refining Converting Oil Chemistry Fuel IEC1 XGU1 This ad features Ohio State

This ad features Ohio State

for the LaMotte Blood Calcium Phosphorus Outfit for determining the Calcium-Phosphorus ratio in serum

This is an original four-color lithograph cover of L'Illustration

There is some light water staining in the right margin --please see image

1922 Ad Aluminum Chlorid Gulf Refining Converting Oil Chemistry Fuel IEC1 XGU1 This ad features Ohio StateThis is an original 1922 black and white print ad for the Gulf Refining Company's process of converting oils including, gasoline by aluminum chlorid. CONDITION This 89+ year old Item is rated Very Fine +. Light aging throughout. No creases. No natural defects. No surface rub. No tears. No water damage. There is some bleed through visible on this this ad. There is a small brown blemish in the center of this ad. Product Type: Original Print Ad; Black