NOTE: Ursula Baumann 12/2025:Combination of two tableware patterns: On the right side you see the same thumbprints as top parts of the horn in “Horn of Plenty”. On the left side are the same yoke design as part of a cup in the “Yoked Loop” pattern.
NOTE: Liz Roach 1.1.2026: The bottom half of the font is clearly YOKED LOOP (AKA) which is currently Maker Unknown. The top half of the font is less obvious. We know that that HORN OF PLENTY was made by Boston and Sandwich but also by McKee in 3 different variations over a period of time. It's possible that based on your lamp, whoever made that variant of HOP also made YOKED LOOP.