The Dates of Variously-shaped Shields, with Coincident Dates and Examples

In venturing to place before the public this little work—which takes up a line of enquiry never before attempted,—I would solicit criticism, not of that slashing condemnatory kind which destroys a statement without pointing out its correction;—that would only break my head, and make no one the wiser!—but I hope that antiquaries who have more knowledge than I, may, when pointing out errors, also explain what such statements ought to be, and give exact references in proof.