CSA 7-R, 5¢ blue pair (4 margins) tied SPARTANBURG S.C. MAR 24 double-circle datestamp on ad cover with printed oval of J.N. Robson, Commission Merchant, Charleston, S.C.; envelope addressed to James N. Robson, Charleston, So.Ca. Top back flap missing, otherwise Very Fine, Ex David Burton. $275.

J.N. Robson and Son, Charleston, South Carolina, were commission merchants, wholesale and retail dealers. Their business activities ranged from choice grains and hay to chickens, butter and eggs, to explosives and ammunition. They were located at 136 East Bay and 1 and 2 Atlantic wharf.