Below are web site links that can be helpful for identifying marks we might come across on open salts. These links will take you to outside web sites, so you will have to use your own browser's back button to return here.

	This is 925-1000.com, an excellent online resource for researching silver marks.
	Helpful for identifying and dating the color name of a Boyd Crystal Art Glass open salt. Click on each small chick picture for a larger image.
	All about cut glass including patterns and cutting houses.
	Marks and labels on British Glass after World War II.
	Great source for dating Doulton Lambeth and Royal Doulton pieces.
	Gaudy Dutch, Gaudy Welsh and Gaudy Ironstone...a thumbnail description of each and how to tell the difference.
	Link to the Great Glass website page of marks on all glass.
	DANISH GLASS - Click on Glassworks, then click on each company to see the glass attributed to that company. All but a couple have salts pictured.
	Identifies the marks on Irish Belleek china. Pins down the time of manufacture.
	All about Loetz Glass with many pictures.
	Click on the years or other informational links on this page.
	History of marks of Royal Copenhagen.
	Marks of Trenton, NJ potters.
USA Pottery Marks	Early pottery marks of US makers from the Crockery and Glass Journal 1905-06.

English Registration Numbers