Scott,I've always thought the same thing. You don't find the '47-'54 450, & 470 series COE's on the East Coast either. In the 26, or 27 years, that i've been collecting COE's, i've only found one 450, or 470 series COE in North Carolina, & one in Virginia. The one in North Carolina was a '53 model that had been damaged badly, & the one in Virginia was tied up in an Estate. I found the 450 you have in Indiana, & the 470 I now have, came from Washington State.