1 3/16" M letter probably used for a bottle or decanter of madeira a fortified wine could now also signify malt as in malt whiskey. The hallmarks are excellent, we have WK the makers initials we have the bust of a young Queen Victoria, the lion denoting sterling silver we have the earlier symbol for a London made piece - the leopards head. If you check the guides we have a particular stylized C which means that this piece is from 1838 !

                                     

                                  

                                                    

Happy to combine shipping and you will get a good deal, if you buy a few items using 'buy it now' add the items to your cart first and request a new total reflecting combined shipping. Checking out with multiple items as you go to pay there is a link on that page requesting a new total, I usually get to it very quickly. Please look at my feedback - read some of the comments- I have a stellar reputation. No returns.