silver plate or silver? Help please to identify fork

[Aldoni]

Hello ladies and gents.

I have this fork and am new to this silver business.
I think its plated, can anyone help with the other marks?

Thank You

Stan

[silvermakersmarks]

You are right in thinking it is plated. JP&S S are Joseph Parker & Sons of Sheffield.

[Aldoni]

Thank You silvermakersmarks

Stan