at various times they made plain lids (with no basting drippers) and slant lids (only marked on the inside of the lid), raised letter marked lids (these tend to be the most popular with collectors, because of all the writing), then later they made the small logo which were sometimes 'ez clean' or enamel inside.
I don't think the big 13 dutch ovens were made either very early or very late... mainly in the 1920's and 30's .