Heisey #10 flower block was made 1923-1939 in crystal, moongleam, and flamingo (shown). It has 19 holes and is 4 1/2" wide. Similar to frogs by other companies. Heisey's has 6 small feet, the holes don't go all the way through, and there is a small ledge encircling the top rim.
This information comes from The Collector's Encyclopedia of Heisey Glass 1925-1938 by Neila Bredehoft.
