Grannies old tea service.

Been holding onto this 3 piece tea service for a very long time.

First of all there is no hallmarks that make any sence, all there is a small recantangle (Like a stamp) where the hallmark should be on all 3.

I know that the piece has been in the family for at least 2 generations, so I am guessing its around a century old, its either chinese or hong kong silver.

The trays underneath are not part of the set.

Can anyone hazard a guess if it is any value or not?