what does "a piece of ranch fence"mean? a stick from a ranch fence?
Kennedy was still believed to be alive, and traffic had not yet entered its mad phase, when Mac Bundy crossed the Potomac with McNamara's driver, each of them, as Bundy noted in his subsequent memorandum of events, boosting the courage of the other. In the corridor that curves past the oval office Bundy joined Ralph Dungan, whose return from the Chilean Embassy luncheon had preceded him by a few minutes. Neither of them said a word. The scene was studded with small incongruities: Dungan, puffing his pipe, looked serene and ironical, which he wasn't; on the wall hung two Texas Ranger pistols buckled to a piece of ranch fence (a sign above identified them as "The Texas Peacemakers"); and General Services Administration workmen, having received no new orders, continued to put down the new blood-red rugs in the President's and Evelyn Lincoln's offices.