You can search on here for Hilary Klein and you will see posts talking about him. He made miniature ( 4 - 5 inch) working copies of 76 different patented adjustable wrenches. Hilary stopped making them a few years ago as he is in his 90's and his eye site is getting to bad for him to continue. Jim Keats is another miniature wrench maker. Both guys made/make from 6 to maybe 12 examples of each wrench and sell them. Hilary is best known of the 2 and some of his wrenches have sold for over $1,600.00 ea in tool auctions.
By the way great stuff you make. I also enjoy the show and tell here and I have peaked at you other pictures posted on the other site mentioned in this thread.
There is another gentleman I believe someplace in the mid West that also make detailed miniatures that rival Paul Hamler. I can't think of his name at the moment.