Vintage Pyrex Flameware double boiler retailer bottom half only NO lid 1936-1979

Vintage flameware by Pyrex
doubler boiler bottom half only
NO lid
1936 - 1979
5 3/4" diameter
5" tall
USA made
Free of chips or cracks
Many scratches from retailer many years of use
Glass is clean and shiny
Hand washing recommended
Please see all photos as they are part of the description
Thanks for looking and have a good day!