Mark and Vincent, thanks. When these came up for sale at a price I could afford, I couldn't resist. The level of detail is over the top, all hand fabricated brass..... So I jumped, and just about bought everyone he had for sale figuring they were long out of production and no longer available....
There aren't many of these left standing and still operating, most have been replaced after 2000 by CSX. Took quite a while to understand what all white marker lights are for. In short, they are "approach speed" indications for the block the engineer is entering, as well as what speed he/she needs to be going approaching the next signal...
Anyway, after I found the 2nd resource, it was much easier to comprehend, and plan with.
There are a more than a few signal wires running between relays, so I finally broke down and realized I needed to put all the relays on one panel, then run multi-wire cable out to the actual signal locations.
I will keep posting as I make some progress.
