Welcome Donald. The attached steel plate with the red logo almost sounds like a # 2020 elevated hot plate. Tag is between the two burners (on top front, attached in 3 spots). The 2020 is on sheet steel elevated legs, and has a lower shelf. Just wondering, as a # 202 is an "Erie" brand truss leg (with an Erie plate on the front lip), and the cast legs are very fancy.
If yours is the 2020, the circa would be 1930's. Not sure if this is of any help . If it is the 2020, the Blue Book has it at $ 175- 200, in good condition, with no issues.