Labor leader and longtime president of the United Mine Workers of America. DS, one page, 18 x 23, July 13, 1942. A United Mine Workers of America certificate, illustrated with engraved mining vignettes, granting a charter to Local Union No. 7956, District No. 5 in Pennsylvania. In very good condition, with toning and soiling, a few edge chips, and scattered light spots, none of the above affecting the bold signature, and secretarial countersignature touching lower portion of signature. R&R COA.