PYREX Flameware Blue bubble 1-1/2qt Double Boiler with lid F*S Hermes factory knob #996 Anvil trademark

#996 Anvil trademark

The scriber holds a technical inking pen on one arm

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This is a gorgeous

PYREX Flameware Blue bubble 1-1/2qt Double Boiler with lid F*S Hermes factory knob #996 Anvil trademark1940s vintage PYREX Flameware Blue bubble 1 1 2qt Double Boiler with lid. Here is one of a pair of my Mother's Pyrex flameware double boiler, with stainless steel bands holding the glass handles on 2 saucepans with one fitting inside the other to create the Double Boiler. My Mother always said that this is "absolutely necessary" if you want to make 7 minute frosting. The double boiler is 8" high with the lid on. 12" wide with the handle. 6" in