This is a brand new Robertshaw replacement knob dial white in color for your older Vintage Antique Oven Range Stove.  

Has special "Low Temp" Range on the dial.  Plus it says "Flame Master" as well. 

These are the classic original dials made by Robertshaw.  All NEW never installed.  

These are NO LONGER AVAILABLE thru parts suppliers.

Cross references I can find are:  

4590-023, 4590-723, and functional replacement for  4590-002 & 4590-720

Have been used on Robertshaw Controls such as models BJ, BJWA, BJFMA, BJC, U, UA, UAF, MP, and others....