After several days of back and forth phone tag the seller of this ca 1893 terracotta plaque made by the Union Pressed Brick and Terracotta Co of S.F. Calif we came to a meeting of the minds on this and for it’s shipping. The panel measures 16x24x4″ and is made from red clay mined in Valejo where the factory had their brick production plant. The company history was interesting to read about, the founders happened to notice some high quality red clay by 5th street and Solano Ave in Valejo. One thing led to another and in 1889 they acquired 35 acres there and broke ground to build the new…