Antique Spoon Hallmark Identification Help

[WatchCollector56]

This spoon was recently acquired from an estate. I was hoping if someone could tell me what its hallmark says? and its value?
Thank you!

 

[GpSnoopy]

I believe the NS stands for Nickle Silver, which really doesn't contain silver at all. Nickel silver - Wikipedia, the free encyclopedia

J.G.G. (symbol) S (the S may stand for Sheffield??)

This particular hallmark doesn't seem to be on the silver hallmark sites, which could be because it's not actually silver, but I did find this on another forum discussing the same cutlery marks..... as well as this electroplate hallmark page.

http://www.silvercollection.it/electroplatesilverGdue.html#GRAVES

J.G.GRAVES
J.G. GRAVES LTD
Sheffield
A famous maker who wed mail order and deferred payment plan. John George Graves was active at Entreprise Works, St. Mary's Rd, Gell St, and 169 West St, (1900-1910) and Margaret St, Sheffield (1911-1914). The firm became Ltd in 1905.

Your piece and mine were made by this company. As it doesn't say Ltd. both pieces were made between 1900 and 1905

EDIT: Just a side note that John George Graves did have a silver hallmark, J.G.G inside a shield which was used on actual silver products.