San Francisco, Cal/Oct. 20, 1915/Model P.O. Sta. Numeral "1". Duplex cancel (Bomar SF15-01) tying 2¢ Pan-Pacific in combination with 1893 2¢ Columbian tied by clear oval "San Francisco Model Post Office" cancel (Bomar SF15-05) on cover to Cleveland with attractive multicolor Expo. label in the upper left, Extremely Fine and attractive. Estimate  $150 - 200. $0 (Image)