This is a cage shaped metal burner insert that fits into the top of a coal burning stove.
The known provenance for this stove is that it was made by The Estate Stove Co. (history of the Company below). These types of stoves were made for use on railroad cars. HC has other examples by the Kahn foundry in the collection and possibly another Estate stove that was found in the collection at the Silver Plume depot (as of today not located, cop of card attached). At this point no other HC stoves have been identified as made for railroad cars. The stove is being recommended for disposition primarily because of its poor condition (the piece is very rusted and corroded). The recommendation is also due to lack of provenance (no associated story) and because these stoves--especially the pot belly model--can be found for sale on the internet at a reasonable price. This same Estate stove is currently for sale on Ebay, refinished, for $850--see attached printout. Further, the stove is in storage with no future plans for use and if it were to be used it would need conservation.