All of the advertising , front and back , was for Supertest , while earlier versions
promoted a different company shown on the back cover.

Here are two earlier bookcovers , probably from the late twenties or thirties illustrated by Jimmie Frise .
He did several other illustrations for Supertest and other companies.
For more on him and his work  , click here

The Ballade of Supertest

This ballad was printed on the inside flap of the fifties era bookcovers.

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