Worn makers mark help

[Tricky625]

Hello,

I am hoping someone in the forum can help with identifying the makers mark on this Georgina period sterling salt cauldron that came out of London.

It is well rubbed so I am likely not going to be able to definitively identify it but I am hoping for a miracle!

It has the date mark for 1749 so I am hoping this will narrow down the possibilities.

My apologies for the quality of the hallmark pictures in advance but they are the best I could get.

[Tricky625]

Further to this I believe the hallmark ends in a W or maybe starts with an M?

The style of cellar reminds me of Edward Wood but the partial hallmark does not really correspond.

Would anyone hazard some possibilities?

[AG2012]

Partial marks of lion passant and date letter ``O``.Unfortunately, that`s not enough.Can you give us all marks,please?

[Tricky625]

The pic shows all 4 marks, the date stamp, the partial lion passant, the city mark (I believe) and the very rubbed makers mark showing only the faint remains of either a W or M.