I have seen the Crossline on Facebook, Tom (I'm more of a lurker on FB than I am here). It looks great!

Nice SW Chris. I remember the alco ad for those in an old MR copy. Before the re-building, they were sort of an up sized SW-1, with that front sand box.

Yes they were.
I think I remember reading that EMC changed the Reading Company order of 600 HP switchers midstream to SW-1 switchers with their new 567 engine after supplying the first group of 5 switchers with Winton engines.
10 through 15 SW series
16 through 24 were SW-1 series.
These SW's made it into the late 1950's maybe the early 1960's in storage. Some SW-1's made it into Conrail.
Similar units on the CNJ lasted longer.
Most of these were used on Philly area jobs where they helped with smoke abatement issues.

All 10 SWs were rebuilt by EMD in 1955-56 into SW900Ms, Reading class OE-13.

terrible lighting, but here's 2 SW 1's at the Coral St engine terminal, at Port Richmond in 1975..plus a few of the other stuff on hand. Al told, 2 SW1's, 2 VO1000m, and 1 or 2 SW1001's on hand plus the road power. I don't think it was common for 6-axle power down this far east, but I could be wrong, at least this late in the game...the line crossing the tracks on the bridge with theety TTX flats in the PRR/PC Trenton Ave high line, which connected with the PRR main and line to Jesy at Frankford Jct. There was a track referred to as the Belgrade St connection that connected the Port Richmond yard with this line and was used to run the transfer round trip between the RDG and the PC's Pavonia Yard in Camden NJ,I believe exclusively for PRSL interchange, as the RDG owned one-third. Interestingly enough, PRSL interchange traffic was set out at their Bulson St yard in south Camden, which was itself ex-RDG dating back to the Atlantic City Railroad days, pre-1933

Thanks for these photo's.
As to six axle power this far east I think these were more common than you might think.
Bethlehem ore trains would use sets of three. Or they would be combined with 4 axle power. From Trainmasters to EMD, ALCO and GE. Lots of photo's of Erie Ave yard show the big units on the ready track or the fuel track.
Jersey City trains used mostly combinations of 4 axle power.
I have photo's of big ALCO 5305 on B&O tracks on the east bank of the Schuykill River.