Not a gun but still interesting. In 1938 my Father bought a 1936 Harley Knuck, he called it 61. It was used but almost no miles, price was $375. He traded a 28 flathead and was allowed $25.
Dad had decent job in a cotton mill and made a little over $700 a year, the bike was half a years pay any way you figure. He helped pay for the bike by buying a case of shine every week and peddling it out at the local road house on the weekend.