Description
Helbock, RW, Postmarks On Postcards, An Illustrated Guide to Early Twentieth Century United States Postmarks, La Posta Publications, 1987, 248 pp. #68658
Helbock, RW, Postmarks On Postcards, An Illustrated Guide to Early Twentieth Century United States Postmarks, La Posta Publications, 1987, 248 pp. #68658