SI Vintage MCM 1960s Floral Japanese Stacking Mug with 2-Finger Handle

This vintage stacking mug by SI features a 2-finger handle and a true MCM/Mid-Century Modern floral design in orange, yellow, and green against a white background. There's a little discoloration/aging on the rim of the bottom as you can see in the last photo, but the rest of the mug on both the outside and inside is in pristine condition. It is 3.33" in height and 4" at its widest, including the handle. The diameter of the top opening is ~3". The diameter of the bottom edge is ~2.33" Please let me know if you have any questions. Mid-Century Modern MCM Floral Japanese Stacking