The Simpson Jr is a highly prized machine by vending collectors. There don't seem to be enough of them to go around. Probably because it is such a cute little machine (only about 12 tall) and very early, possibly 19-teens or 1920's.
The item "1 cent Peanut Machine Simpson Jr Cast Iron Vintage Penny Gumball" is in sale since Saturday, March 16, 2019. This item is in the category "Collectibles\Banks, Registers & Vending\Vending Machines\Gumball". The seller is "daveb" and is located in Pomona, California. This item can be shipped to United States.