Lot
1358 
San Diego, Cal., Exposition Sta., duplex cancel (Bomar SD15-01) on five different covers (all from the same correspondence), all with Pan-Pacific frankings in combination various other commemoratives including 5¢ Jamestown, 1¢ & 2¢ Trans-Miss., 2¢ Hudson-Fulton, etc., four with Exposition labels, one cover registered with unusual straight line "Found in ordinary mail" & backstamped with "San Diego" registry handstamps, one stamp with trivial defect, Very Fine and attractive. Estimate $300 - 400.
Realized: $700
Lot
1359
San Diego, Cal., May 21, 1915, Exposition Sta., two strikes of duplex cancel (Bomar SD15-01) tying 1904 1¢ Louisiana Purchase + 1915 1¢ Pan-Pacific in combination with 10¢ Special Delivery on cover to Ohio with attractive Expo. label, cover opened for display, Extremely Fine and attractive, a very scarce item with the Special Delivery usage. Estimate $200 - 300.
Realized: $170
Lot
1360
San Diego (Exposition Sta.) Cal., Apr 21, 1916, Registered, violet double circle postmark (Bomar SD16-02) on reverse on incoming registered cover from Barcelona, Spain to San Francisco, Cal. forwarded to "Panama Canal Int. Exposition, Spanish Section, San Diego, Cal."; few cover tears at top, Very Fine, a newly discovered example of this rare exposition postmark used during the 1916 extension period, with only one other on cover example recorded. Estimate $500 - 750.
Realized: $450