Here's a find! Seven Roads has posted an amazing collection of book trade labels, stamps and imprints --hundreds of them. "Anyone who handles old books will have come across these small and sometimes beautiful labels pasted more or less discreetly into the endpapers. Publishers, printers, binders, importers, distributors and sellers of books --new, second-hand and antiquarian-- used to advertise in this way their contribution to bringing the books to market" Check it out. Submissions welcomed.