I lived most of my life in the NW corner of Iowa.Twenty miles from S.D. & forty miles from Minn.The little town I lived by had a rendering plant there.I knew all of the fellas working there especially the foreman.I showed him places to sell things like horse tails,ram skulls,jaws,teeth etc. & he in turn would give me road killed deer hides that came into the plant.So it was'nt long before I did my first hundred lot of brain tanned deer.Did most of it in the winter in the basement with a wood stove & a fan like you see in the picture.Still do this day do every deer that I shoot but not quite on the scale that I was doing them back in those days.It's not the dirty smelly job that some people think.