The makers mark on your sugar bowl can be found in the American section under names beginning with the letter "H". It is M. Fred. Hirsch Co of New Jersey
Here's a shortcut with an example plus a little more info:
Many thanks for that information, I couldn't see the CROWN mark anywhere on the 'H's' when I looked on the site, amazing that one's eyes cannot always what is in front of them. Thank you once again.