I picked up a bunch of IHC passenger cars pretty cheap. I knew they would need work, but I’m thinking of making my first attempt at custom painting and wanted a set that I wouldn’t cry over if it all went bad. They already are converted to body mount kadees and weighted correctly.
I was looking at the grab irons and such that I have to add when I came the the RPO car. As in the picture below, there are three big holes near the door. By looking on google I figured out two are for the mail crane, which I’ll have to scratch build, but the third has me puzzled. Can anyone tell me what goes in it?