Registration limited to the area comprising the states of Minnesota, North Dakota, South Dakota, Nebraska, Colorado, New Mexico, Texas, Oklahoma, Kansas, Missouri, Arkansas, Louisiana, Mississippi, Alabama, Georgia, Florida, South Carolina, North Carolina, Tennessee, Iowa (except the counties of Lee, Des Moines, Louisa, Muscatine, Scott, Clinton, Jackson, Dubuque, Clayton and Allamakee), that part of Illinois lying south of the northern boundary lines of the counties of Hancock, McDonough, Fulton, Tazewell, McLean, Ford and Vermilion, in Indiana the counties of Sullivan, Greene, Knox, Daviess, Martin, Gibson, Pike, Dubois, Posey, Vanderburgh, Warrick and Spencer, and Virginia (except the counties of Fairfax and Prince William). Concurrent Use Proceeding No. 67 with Reg. Nos. 346,154 and 555, 541.