On Thu, 21 Sep 2017, Mike Loewen via cctalk wrote:
Mike Thompson at the RICM is going to look for a number on the key for their 2108A, this weekend.
Ask if he can snap a few good close-up pictures of it. While measurement from a picture isn't reliable, it doesn't have to be, if the picture is clear enough to decide whether a given cut is a 2 cut or a 3 cut.