Very cool! I have a similar cannister looking transformer
Going from the font on the “110 volts”- I thought yours may possibly be made by a company called Jefferson, see here
http://www.roger-russell.com/j....htm#toytransformers
But that isn’t anywhere in what they produced. Also, comparing the Betts & Betts Hercules with yours, it looks as though yours may have been altered? I wish I had more answers for you but I thought at least something comparable and a comparable manufacturer may be of help.