Tiffany Jewelers or Crane & Theurer? by: Anonymous
Hi Ruben thanks for writing in with the Tiffany Jewelry question.
looking at the photo, the TC mark on the back of this 14 K gold pin looks like the mark for Crane & Theurer who were manufacturing Jewelers, in New York, NY, and Newark, NJ, USA from 1895 - 1945.
There are twenty two Tiffany Jewelers marks that I am aware of. One looks similar to this one, however the Tiffany jeweler's mark has an ampersand - & also within the overlapping TC initals.