Comments on: More Ontario Southland. Paired OSR units OSRX 182 and OSRX 378 rest in front of the Woodstock depot. I’m not sure where or how I got the symbol “OSRX” (someone is welcome to comment). The date is June 18, 2011. It is nice to see the matching paint schemes.

By: Joseph Bishop

Joseph Bishop — Thu, 13 Nov 2014 00:30:59 +0000

2014 Trackside Guide has the Ontario Soutland Railway listed as OSRX

By: R.L.Kennedy

R.L.Kennedy — Wed, 12 Nov 2014 22:27:27 +0000

OS is the AAR reporting mark for Ontario Southland. OSRX was used before OSR had any track of its own. There is a cost to change initials (or other data) in UMLER and I believe older units with OSRX are still OSRX for that reason.

By: BradKetchen

BradKetchen — Wed, 12 Nov 2014 21:46:52 +0000

I’ll agree, the ‘X’ is for leases. But, OSR always intrigued me. They are like a Heritage line, running old locomotives, that they own – and not rebult to my knowlwdge, but doing current day operations.

By: cpcnguy

cpcnguy — Wed, 12 Nov 2014 15:20:37 +0000

I think it is just OSR. The “x” is used at the end of symbols for non-railway owned companies such as a leasing company.