Here’s an interesting document.

“ook was placed in a stack exposing the cover to some oily-like residue that produced two 1 1/2″ inch stains upper right area. Did not want to continue listing without noting this change. Looks worse than it really is. I add another picture at the end in detail. Thanks! Wonderful and rare book. 8.5 x 11″ roughly. 58 pp. US Army Tank Automotive Center. Very good condition with owner name in pen and small stain “stripes” on upper-right cover.”

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