I have a Paramount model of a Glascock stove that I would like to restore. Some part numbers that are visible are 68-18-B on the cooktop, 68-18-A on one of the inserts, 8-18-600 on an air flow slide, and 8-18-B on a metal flap. I am missing a cross piece for an insert that holds two of the round plates. Do you know of any parts availability? Can you tell me any history regarding the stove. It belonged to my grandfather and was used up into the 60's.