18th Century John Denzilow (Denziloe) Sterling Tumbler

[size=150]Hello, we’re interested in knowing more about our lovely tumbler cup. From the hallmarks, it is Sterling Silver (lion passant), London (leopard) 1778-79 (letter ‘C’), made by John Denzilow or Denziloe (maker’s mark). Measures approximately 2 inches high x 2 1/4 inches in diameter (give or take a bit). We’re confused with the crest on the front - flowers in a crown? wheat? It’s in fantastic condition, there are couple of small dings around the bottom edge and a few very shallow ones around the body. Any additional information would be greatly appreciated. How collectible are these small tumblers? What would they drink from them? Value? Thanks, bixleyheath[/size]
1.jpg
2.jpg