Here's a fun artifact that recently came in with a small collection of CSTC and CMC alumni Donald Gates. This pin has a large, very pointy pin with no guard on it. For protection of researchers I pinned the rough edge into foamcor board so the point is surrounded by foarmcor board.
CSTC Homecoming pin, November 13, 1939 with maroon and gold ribbon, pinned into foamcor board
foamcor board with envelope over it to protect the pin and ribbon and description about what is inside the envelope