This unit may wind up in the classified section, but before it goes anywhere I wanted to show some of the neat features provided by this vintage equipment. The International boiler with efficient water tube design is made of 5/16" steel. It's old enough to collect Social Security, but shows little wear. It features a large door that provides easy access to the combustion chamber and water tubes (for cleaning).
The stoker is an EFM 16A, predecessor of the S-30 unit that powers EFM 700's (with which it shares several components). In addition to variable feed/air controls, the 16A provides automatic ash removal, automatic removal of fines from the air chamber under the burn pot and a slide plate to stop the flow of coal from the hopper (e.g., to enable foreign objects to be cleared from the pot auger).
The thing I've found most fascinating is the cabinet for the stoker. It provides a hinged top with a built-in screen for removing foreign objects from the coal as it enters the hopper, a duct that permits the stoker to draw air from the top of the hopper (may help to control odors), external feed rate adjustment and detailed operating instructions printed on the access panel. And it's pretty enough that it wouldn't look out of place in a finished area (like Rob R's living room