(Georgian?) Spoons - Makers, dates & Assay Towns?

Hi. Could anyone please help me identify the assay office / date / makers of any of these three spoons? One has a particularly interesting picture on the back of the bowl. Many thanks,

Peter
Spoon 3.jpg
Spoon 2.jpg
spoon 1.jpg

The sections of your pictures with the hallmarks are a bit too small for easy identification. However my best guesses are:

1: possibly London 1735, although the punch doesn’t seem quite the right shape

2: no idea, but the Hanoverian pattern dates it to before c1785

3: possibly Robert Gray, Edinburgh, c1800; but the town mark also looks a bit like an Exeter mark of the same period