Murder in the Gunroom by H. Beam Piper

Rand drove slowly through Rosemont, the next day, refreshing his memory of the place. It was one of the many commuters' villages strung out for fifty miles along the railroad lines radiating from New Belfast, and depended for its support upon a population scattered over a five-mile radius at estates and country homes. Obviously a planned community, it was dominated by a gray-walled, green-roofed railroad station which stood on its passenger-platform like a captain in front of four platoons of gray-walled, green-roofed houses and stores aligned along as many converging roads. There was a post office, uniform with the rest of the buildings; an excessive quantity of aluminum trimming dated it somewhere in the middle Andrew W. Mellon period. There were four gas stations, a movie theater, and a Woolworth store with a red front that made it look like some painted hussy who had wandered into a Quaker Meeting.

Over the door of one of the smaller stores, Rand saw a black-lettered white sign: _Antiques_. There was a smoke-gray Plymouth coupe parked in front of it.