(3 1/2 x 5 1/2 In) This is an original vintage R. R. Donnelley & Sons Co., Deeptone postcard from the 1930s. It shows a view of a worker "Removing Firestone Gum-dipped Tire from Automatic Curing Mold in the Firestone Factory and Exhibition Building at the 1933 Century of Progress World's Fair in Chicago.
"FIRESTONE AUTOMATIC CURING MOLDS - After all the component parts of the tire have been assembled-- high-stretch Gum-Dipped cords--plies--beads-- two Extra Gum-Dipped Cord Plies under the Tread-- and the Tread Rubber itself-- the tire is placed in a gigantic curing mold. In this final important operation, the tire is forced by 43 tons pressure into the Firestone non-skid tread pattern engraved in steel mold and vulcanized by steam at 270 degrees F.", reads the description printed on the back.
The postcard is unused and is in FAIR condition, wear at the edges, blunted corner tips, general creases, discoloration, album marks at corners, small hole punched in front.
***Item will be packaged with care in an acid free sleeve, placed between two pieces of cardboard and shipped in a Bubble mailer.***
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