It has rich family history and is fascinating.
What do you think the scales are made of? Lot of German knives and US were metal, and aluminium used to be a very costly option early on.
The 'hallmarks' are not really authentic I'd argue, they look like English hallmarks but there's something odd. Not all items of Sterling Silver had a maker's mark but they all have to have purity stamp - Lion passant which always faces left, this shows it is at least 92.5% silver. There is Britannia Silver too which is higher 95.5 & over but it carries the Britannia sitting mark. Silver made in England between c.1830-90 has a monarch's head as well due to tax. There must be a Guild mark, the city it was assayed in, it LOOKS like a Birmingham anchor yes but that year letter does not appear to correspond to any of the year letters shown by the Birmingham assay office.
Are the blades sharp? are they tough because they could be silver plate EPNS, if they are Sterling they are VERY soft and they blacken like all silver with tarnish.
Crucially, British silver doesn't have the word Sterling stamped on it as it has hallmarks. This word appears on American silver of the c19th/20th.
Here's a link on hallmarks
Thanks, Will
https://www.antiquestradegazette.com/media/37533/birmingham-hallmarks-03.pdf
https://www.antiquestradegazette.com/guides/information-guides/hallmarks/