From Chester Himes (1909-1984):
They were having a big ball in the Savoy and people were lined up for a block down Lenox Avenue, waiting to buy tickets. The famous Harlem detective-team of Coffin Ed Johnson and Grave Digger Jones had been assigned to keep order.
Both were tall, loose-jointed, sloppily dressed, ordinary-looking dark-brown colored men. But there was nothing ordinary about their pistols. They carried specially made long-barreled nickel-plated .38-calibre revolvers, and at the moment they had them in their hands. (page 44, Vintage Crime edition 1991)