Donald Nance, a vacationing Massillon, OH, accountant and history buff, detected a historical inaccuracy Monday in a Wild West-themed topless revue at Las Vegas' Mustang Club. 'If you look at the pistols Miss Kitty was brandishing, they were clearly of a make not produced by the Colt factories until well after the turn of the century,' Nance said. 'And the kind of white patent-leather boots worn by the strippers were not produced at any time during the Westward Expansion phase.' Nance also noted that pasties of the Wild West era did not feature tassels. 