Ignore the testing ideas at this point...these are typical pseudo-marks by electroplaters. If British made, the anchor might suggest Birmingham. Crowns were no no's by law in the late 1890's and after. That leaves the encircled raging lion as the best clue to a maker. [There are no regulated or accepted standards marks here for silver finess, so the likelyhood of plating work is
very high in such cases.]
Let's start with Charles Howard Collins of Birmingham around 1890- and see what Trev. et al think:
http://www.silvercollection.it/electrop ... rCdue.htmlThe basic mark is also on this site in the Silverplate Marks menu. Start at the Pictorial subsection and look down.