Hi Trev,
Herewith the extra photos of the hinge to determine original or marriage?
http://imageshack.us/g/14/marriage3.jpg/"
To me the box base and its lid look original. No marriage. The prick work on the lid, the inter woven latticework, looks the same (done with same original tool) as the prick work on the base of the box.
Just to compare. I have a circular patch box dated 1805; two circular halves without a hinge and indeed both halves carry a full set of hallmarks (5); Duty mark, Lion passant, Maker’s mark, Anchor mark and Date letter. I also have a vinaigrette dated 1814; two parts hinged however one halve, the lid has 3 hallmarks; Duty mark, Maker’s mark and Lion passant. The 2nd halve or bottom part has 3 hallmarks; Anchor mark, and Maker’s mark and Date letter and the grill is without hallmarks.
I have a hinged snuff box dated 1744, one halve carries a full set of hallmarks; Date letter, London city mark, Maker’s mark and Lion passant. However the 2nd part, the lid, carries the maker’s mark only.
It looks like assay offices order of hallmarks could vary during the years and vary if box halves were loose or attached by a hinge. Strict rule were not always obeyed and sometimes mistakes were made.
Regarding Joseph (the First ) Willmore’s mark I am as puzzled as you are and I couldn’t add anything more!
Oel