The Pittsburgh Exposition was held annually beginning in 1875, but only for the years 1878 and 1879 were so-called dollar sized medals struck. One so-called dollar was 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.
1879 · SH 3-11 WM · White Metal
The Western Pennsylvania Numismatic Society exhibited again in 1879 and commissioned a new obverse die…