Item is used. Please review photos of close-up photos of keyway
Vintage Clock Key as shown in photos - This is an older vintage key not a newer remake.
Key sizes by numbers vary amongst different countries and makers - why I added a millimeter measurement.
I round down the measurement to the nearest 0.25mm
Make sure your key is slightly larger than the square post it is to fit to insure a good fit.
Size measured by micrometer and is approx.
PLEASE LOOK AT PICTURES FOR DETAILS OF THIS UNIQUE ITEM
(inv/loc# cd-kr1)