I surmise the C2 plate was added later to get around the injunction by its owner. Since virtually all commercial clone production stopped after the 1914 Vibroplex Injunction, I’m going to say it pre-dates that time period. I then noticed the rounded corners which typically mean its a clone bug. My excitement was quickly doused at seeing the Vibroplex C2 style name plate and serial number 61123 dating from 1918. Vibroplex Original bugs had this design for about three years between 1906 and 08, primarily from their Norcross, GA factory. I was originally rather excited to spot its Vibroplex 1906 style frame with side-jutting outriggers. Here’s yet another mongrel bug that I acquired yesterday at an antique shop.
1906 Clone bug “The Mongrel” w/ 1918 Vibroplex C2 plate and 1906 style frame (~pre-1914)