Hi folks, I have a Beseler 23c Series 2 that I got off the eBay. I had to replace the gears but otherwise it's solid. I do have two questions so far: 1) Does putting a contrast filter in the drawer have any effect when making contact sheets? 2) I thought there were supposed to be numbers up the side of the support posts, so you could keep track of how high it was, etc. Mine doesn't have them. Thanks.