Vintage Arabia of Finland Pottery Karelia Pattern Flat Demitasse Cup Brown White

Flat cup from Arabia of Finland. This may be the Karelia pattern from the 1970s, but the brown band looks more irregular than usually seen with this pattern. It also doesn't have the pattern name on the bottom, but I can't find another possible pattern that it could be. No defects noted. Measures 2.5" tall and 3" across opening. Smoke- and pet-free home.