dinnerware marks

[jab]

Do companys mark all pieces in a set of dishes?  I have some that seem to match pieces that are marked but not marked themselves, i.e. cups, saucers, sugarbowls, etc.

[D&b antiques]

no they don't.it's also not uncommon for the company to sell the mold to another company. which in turn makes the same product.with out the trade mark.