Quote: In 1878, disaster struck. Coin Press No. 1 malfunctioned, breaking the frame. As luck would have it, the Virginia & Truckee (V&T) Railroad was located just a couple blocks away from the Carson City Mint, and the V&T engineers were able to repair the broken frame of the press, which saved the Mint from having to send the press all the way back to Philadelphia for repairs. When the V&T operators successfully repaired the press, they signed their work, replacing the Morgan & Orr builder's plate with a custom builder's plate that included the V&T name, location, and date, which would ultimately save the press.
A quick peek at The 'Bay shows a handful of similar ones, sure of the actual date mine was made, though my example says "1870-1950".