Lot Of 3 1990 SANDICAL Expo Cameo of America Covers Balboa Park - Organ Pavilion

Description

This listing is for a lot of 3 envelopes canceled during the SANDICAL EXPO in San Diego on February 10, 1990.  The 3 items are:
75th Anniversary Balboa Park Cultural Heart of San Diego 1915 - 1990
75th Anniversary of the Completion of the Panama Canal 1915
75th Anniversary Spreckels Organ Pavilion Balboa Park 1915 - 1990
These 3 envelopes were in my dad's stamp collection that he left to me when he passed away in 2008.  My dad and I collected stamps together for about 35 years.  Now that I am well over 70 years old it's time to let someone else enjoy them as much as we both did.  He and I attended the SANDICAL show every February.   We always found stamps for our collection from one or more of the great dealers who had display tables at the show.
The 3 envelopes have stamps issued for the 20th Universal Postal Congress.  They appear to be a Steam Ship, a Stagecoach and a Mail Delivery vehicle.
All 3 of these envelopes and cancelations are in great condition.
Thanks for looking.
Sorry I no longer ship internationally.