I've had this little fellow for many years, I obtained him in a large junk lot of lead figures at a Phillips Auction in the early 1980's. I don't know who made him but he's typical of the sort of conversions that members of the BMSS (British Model Soldier Society) had been making from toy figures since the mid 1930's.
He is the Mad Hatter from Lewis Carroll's "Alice's Adventures in Wonderland", who was trapped in a perpetual tea party for upsetting Time. I let him out once a year on All Fools Day.
He is hollow cast lead and is a conversion made from the body of the Charbens Costermonger and the head from Britains Village Idiot, the crown of his hat is the upturned bucket from a zoo keeper (possibly Taylor & Barrett), the brim and his collar are made from metal strip. The price ticket in his hat reads 4/- (four shillings) which is an error because it should be 10/6 (ten shillings and sixpence).
As a conversion he is a unique piece and I would love to know who made him, sadly whoever it was is probably no longer with us and has left us no indication. I do wish modellers would leave some mark on their work for posterity but there we are, he remains a charming little character and for some decades has found a safe home among other such curiosities
