These quality mugs were made especially for Adam, Meldrum & Anderson Co., a now defunct (1994) prominent Buffalo department store for over 100 years.
Illustration depicts buffalo wings and fixings on one panel and roast beef on weck on the other. Both are surrounded by banners stating "Buffalo's Own"
Diameter: 4 1/4"
Bottom stamp: 1984 Adam Meldrum & Anderson Co. Made in Japan