North Hollywood CA California Superweld Corp Hydrogen Atmospher Furnace Postcard

This vintage postcard showcases the Superweld batch-type multiple-muffle hydrogen atmosphere furnace designed for large assemblies and special heat-time cycles such as brazing and annealing. The postcard vividly captures the furnace's glowing interior, highlighting its impressive size with a muffle diameter of 54 inches and height of 36 inches. Produced by Mellinger Studios of Pasadena, California, and printed by Dexter of West Nyack, NY, this card reflects a unique industrial process important to mid-20th-century manufacturing technology.

Ideal for collectors interested in industrial history or technological advancements, this postcard offers a rare glimpse into specialized heat treatment equipment used in the Western United States. The card's clear, detailed image and informative text make it a valuable piece for those fascinated by metallurgy, manufacturing, or vintage industrial postcards. Its original paper material, standard 5.5 x 3.5 inch size, and the absence of any writing or postmarks make it a pristine addition to any collection.

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Postcard Size: Standard Vintage 3 1/2 by 5 1/2
(Unless Otherwise Noted in Title)

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