Corner supports for an Victorian HO scale train shed. Intended for a model of the Southern Pacific San Jose Market Street station, design based on turn-of-the-century photos, but would work for other 19th century stations. Large supports are 54" square 6" thick (HO scale), small supports are 27" square and 3" thick.
Printed well (though circle details on back side didn't adhere.) See photos of the finished model here: