Ceramic heater radiant insert 8" tall 2 1/2" wide diagonal (R361 Birmingham?)

Description

This may be an R361 substitute for Birmingham, not sure.  It measures approximately 8" tall and 2 1/2" wide, and slightly over 2 1/2" deep.  There is a diagonal pattern.
Measurements from one radiant to the next can vary slightly, as these are molded and fired ceramic; and they sometimes have slight flaws or chips which do not affect the use.
This item came from the liquidation of an old hardware store, and is new old stock.  However, it may have stock number markings on the radiant, from the store.   Please look at the photos carefully to be sure this is exactly what you need.
Please ask if you need more information, and thanks for looking.
Most of my items are pre-owned, usually from estate sales, so I try to describe them accurately and show flaws in the pictures.  Any props in the picture, such as easels, ruler, or backdrops are not included.
Please contact me if you have any issues with your purchase and I will do my best to resolve it.
Thank you for looking!