Mona-Steel String Ads

The Davitt and Hanser Music Company Musical Instrument ordering catalog, 1941.
Large 4-page Gibson Mona-Steel Strings ad appearing in the D&H Musical Catalog, 1941.
Inner two Gibson Mona-Steel advertising pages.
Last of 4 advertising pages in 1941's D&H Musical Catalog.
Late '30's Gibson Strings Brochure distributed by Tonk Bros. Co., Chicago.
Back-side of Tonk Bros. Co. brochure for Gibson Mona-Steel Strings. Circa late '30's-early '40's.
Gibson Mona-Steel display boxes and brochures.

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