Old Leather Working Tool

I recently came across this tool and had absolutely no idea what its purpose was.  No-one else that I asked seemed to know either. After contacting our wonderful Melbourne Museum we were delighted to find out the identity of the tool. To quote the museum... It is a ‘glazing iron’ used in leatherworking and is described as follows:

These apparatuses were used hot after applying wax, inks, special polishes or heel balls to give the leather surface lustre, particularly within the soles and heels. This particular tool bears the tool manufacturers trade mark "ALS / Barnsley/ Sheffield / England". George Barnsley and Sons produced shoemakers' tools in Sheffield, England (1835-1990)