As an aid to identifying the work of various makers and partnerships included in the tree, I have added
this index of those marks which consist of initial letters alone. The marks are grouped alphabetically
by first letter and each is hyperlinked to the maker's pedigree page. This is not, by any means, an
exhaustive survey; these are simply all the marks I have gathered to date.
If anyone has additional examples (or clearer versions!), I would appreciate hearing of it.