My new hobby of train air horns

I now collect train air horns on a daily basis. I look all over the Internet and newspapers to purchase train air horns. My dad got me into the hobby a few years back, because he really has an interest in locomotives and the horns they utilize. His favorite types of horns are the Leslie and Nathan K series. Currently I own over 50 different air horns, from a variety of manufacturers and even some rare models. I have been selling my rarest horns over ebay to make some extra cash on the side. I am saving up to buy a new horn.