36 inch caloric high low range
This thing is probably heavy, since gas stoves were traditionally 36 inches wide when the high low trend started in the 60s the gas range manufacturers wanted something to compete with the electric rages and people who had a 36 inch wide space in their kitchen for the range, this was perfect. Of course, all it did was give you more space on the cooktop as you had the same size ovens as the 30 inch edition.
This one was made sometime between 1980 and 84 probably
John L