Here's a few
Texas 1974 - http://www.worldlicenceplates.com/jpglps/USA_TX_GI7_1970's-80's.jpg
Florida - 1975 http://www.worldlicenceplates.com/jpglps/USA_FL_GI7_1970's.jpg
Kansas - 1974 http://www.worldlicenceplates.com/jpglps/USA_KS_GI7_1970's.jpg
Missouri - 1976 http://www.worldlicenceplates.com/jpglps/USA_MO_GI7_1970's.jpg
Nebraska - 1972-75
http://www.worldlicenceplates.com/jpglps/USA_NE_GI6_1960's-80's.jpg
Texas 1974 - http://www.worldlicenceplates.com/jpglps/USA_TX_GI7_1970's-80's.jpg
Florida - 1975 http://www.worldlicenceplates.com/jpglps/USA_FL_GI7_1970's.jpg
Kansas - 1974 http://www.worldlicenceplates.com/jpglps/USA_KS_GI7_1970's.jpg
Missouri - 1976 http://www.worldlicenceplates.com/jpglps/USA_MO_GI7_1970's.jpg
Nebraska - 1972-75
http://www.worldlicenceplates.com/jpglps/USA_NE_GI6_1960's-80's.jpg