(Fire Related) Geo. T. Carter & Co. General Agents, large gold illustrated design on locally addressed cover showing Babcock Fire Extinguisher and Self-Acting Fire Engine Wagon, franked with 2¢ red brown tied waffle grid handstamp and Pittsburgh, Pa. cds; cover with the barest reduction at right, Very Fine and choice, a wonderful and rare design in gold. Scott No. 146  Estimate $400 - 600. $0 (Image)