Here is the full ad from Knippel-Selig Ford from the May 22nd, 1968 edition of The Milwaukee Journal featuring the Selig Swinger Mustang.

• Photo Information:
• Visible Options: louvered hood, side C-stripes, color-keyed vinyl roof, steel-styled wheel covers, wide oval tires
• Owner: from Milwaukee Wisconsin WI
• Posted: 10/20/2012
• Other Links
• It's in the 1968 Mustang Collection Pages
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• See other 1968, Selig Swinger (rightrear view, hardtop) photos