San Diego in 1915-16 hosted an exposition that was open during the same time as the exposition held in San Francisco. San Diego's exposition was extended for an additional year, into 1916, and also celebrated the completion of the Panama Canal. Thirteen so-called dollars were struck in various compositions for this exposition. The details are cataloged in my 2023 book So-Called Dollars Volume I: United States Expositions. Click on the “View All” link below to see them.
1915 · SH 19-1 S · HK-426 · Silver
With North and Central America in the background, Uncle Sam is depicted on the obverse…
1915 · SH 19-1 BZ · HK-427 · Bronze
With North and Central America in the background, Uncle Sam is depicted on the obverse…
1915 · SH 19-1 GPBZ · HK-428 · Gold-Plated Bronze
With North and Central America in the background, Uncle Sam is depicted on the obverse…
1915 · SH 19-1 SPBZ · HK-429 · Silver-Plated Bronze
With North and Central America in the background, Uncle Sam is depicted on the obverse…
1916 · SH 19-2 BZ · HK-430 · Bronze
Uncle Sam with shovel design but dated the second year of the Exposition, 1916. Designed…
1915 · SH 19-3 CU · HK-432A · Copper
1915 · SH 19-6 SPBS · Silver-Plated Brass
1915 · SH 19-11 GP · HK-434 · Gold-Plated