1.75" with rim designed as a clock face but with the months of the year indicated rather than numerals. Clock hands point to June and at the mid-point between October and November. Center has early auto below, dogsled at top and bkg. of snow-covered mountains with tiny red sunburst. Backpaper by Hoegee has center crease and small dust smudge. Celluloid front has extremely minor surface dent at far right just a little noticeable to the touch. All displays bright, clean and glossy. Only the second example we've seen. Rare.