I am trying to correctly read the hallmarks on a covered dish. I know its London as it has the Leopard without a crown, the Lion sterling mark, letters CP in small circles, the date letter (small L) which I think according to the chart dates it to either 1786 or 1906. The duty mark is weak in a oval, (King George III, King IV or King Wm. IV). From what I read here the Leopard must wear a crown to be 1786, the date letter is very clear and the outside frame looks to like the 1786 frame. I have a clear picture however I do not use any third party sites to host pictures. Any tips on how I can positively correctly ID the date letter.