CPB BUILDING PRODUCTS #51 AND 52 CEMENT BUTTONS.
Largest is 1.5”. First is “Saftey Minute Men 1936 Member” with additional text reading “I Stand For Saftey Portland Cement Association”. Minor surface wear. NM. Second is advertisement for “Universal Portland Cement”. 1930's. Very light toning most noticeable in cream colored areas worst areas are at 3 and 5 o’clock at extreme edge. VF.
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