I did wash it and clean the inside as best I could as it was quite dirty.

I did not polish the silver aside from cleaning the area over the stamped marks so that I could see them more easily.

From the silver marks stamped on neck: the lion signifies Sterling silver, the anchor the City of Birmingham, England.

The T L and EM stand for Thomas Latham and Ernest Morton.

The single letter appears to be an L which would date to 1866.

My research is from 925-1000.com