Standard Echo magazine collection Dublin Core Title Standard Echo magazine collection Subject Standard Steel Spring Company, Coraopolis - June 1945 through March 1947 Identifier CHS-2025-0068 Collection Businesses, Retail, Industry Tags steel Citation “Standard Echo magazine collection,” Coraopolis Historical Society, accessed November 16, 2025, https://coraopolishistorical.com/items/show/68. Output Formats atom dcmes-xml json omeka-xml ← Previous Item Next Item →