The IG Encyclopedia, pages 151 and 745, shows a similar set as No. 880. Pages 688, 696, and 697 show them as No. 160.
Felt and Stoer Candlestick books shows the #880 to have a grape motif. They say that the #160 was inroduced in 1955. L. E. Smith now has the mold and marks their products with "S". The Imperial # 160 sticks are often marked with "IG".
