Hi,
I have saved,cropped and embedded your images with the marks, which are as follows:
From top on the left: leopard's head uncrowned for London Assay Office,lion passant for sterling, date letter f for 1821,duty mark George III.
On the right maker`s mark W.B of William Bateman I
Regards
![Image](https://abload.de/img/img_20190729_1308188xki1.jpg)