This is a cool early ad by the Valco Mfg Co (Chicago makers of National and Supro guitars at the time) showing a vintage lap steel...byline is "Electronic Guitars That Stay Sold"
1947 VEGA ELECTRIC GUITAR PRINT AD shown in the photo is an original print ad from a 1947 magazine that measures approximately 6 1/2" x 7 1/2" and is suitable for framing.