Description
This 1936 vintage ad for Johns-Manville insulating materials has a black and white photo of a primitive family around a fire in a cave with the headline, “Precious Heat”.
Year Published: 1936
Approximate overall size – inches: 10 x 13
Grade: Excellent
Excerpt:
“Primitive man stretched a curtain of skins across the door of his cave. Thus was precious heat from this earliest man-made fire first confined for human comfort.
From this crude, ancient attempt at heat conservation has grown the modern science of insulation.”
This is a 88 yr. old original vintage ad removed from a 1936 publication and is not a reproduction of any kind.
