Here appears to be a nautical transit or sextant with a patent date of September 14th 1880 it has very fine graduations I'm not sure if all the pieces are here this lot is for what you see only it is very dirty and I do not want to clean it as some collectors don't like things cleaned I've looked up something that looked the same BH Smith Meridian attachment to a transit instruments in full transit US 232 309A I'm not sure if this is relevant it appears to all be here everything but the stand but you tell me please take a look at the pictures and ask any questions thank you for looking