This is for an Antique Victorian Gas Heater.  This is The Humphrey Radiantfire No. 20 made in Kalamazoo Michigan.    I have not tested this heater so I am unsure if it works.  It either was or was later painted yellow. There are wonderful architectural details throughout.  There is wear present with an aged patina, back stand part is bent up and there is a dent on the side of the heater. This would be neat if you took photos of things being done a long time ago and it could be used in the background of the picture.