Help with indentification, please

Need some help identifying a silver plated tray, coffee pot and teapot.

The tray has the Walker & Hall ‘flag’ and the E.P.N.S. mark, but the pots do not.

The marks on the teapot are similar to the coffee pot, but show ‘H’ rather than ‘Y’ and ‘7’ instead of ‘ZZ’.

Guidance please.

Thanks
Teapot-Mark.jpg

And the tray mark…
Tray-Mark.jpg