Almost certainly fantasy locos. Bethlehem Steel had names for all of its various plant railroads, the equipment was not lettered Bethlehem Steel like those Bachmann models.
PBNE - Bethelehem plant (Phildalephia, Bethlehem, and New England)(yeah they got a little carried away with that one!)
PBR - Patapsco and Black River - Sparrows Point plant
Cornwall Railroad - Cornwall Iron Mines near Lebanon PA
Cambria and Indiana - coal mines in west central PA, Indiana County
UMP - Upper Merion and Plymouth - Allen WOod Steel plant in Conshohocken, PA
SBRR - South Buffalo Railway - Bethlehem Steel plant in South Buffalo, NY, now Mittal Steel.
Steelton and Highspire Railroad - plant in Highspire, PA, just south of Harrisburg along the Susquehanna river, also now a Mittal property
ANd a whole lot more - basically everywhere there was a Bethlehem Steel operation. Color schemes were pretty much the same, just different names.
Rosters are available for nearly all of them. Lots of ALco switchers, EMD switchers, a few Plymouths, some various GEs but none of the ones I've seen so far list a 70 tonner.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
I don't understand the corporate dynamics, but in Johnstown PA they had the Conemaugh and Black Tick RR and in Baltimore MD the Patapsco and Back River RR. Similar paint schemes.
http://www.rrpicturearchives.net/showPicture.aspx?id=4526222
http://flankbell.rrpicturearchives.net/showPicture.aspx?id=294812
These are not 70 tonners but it gives you another lead on Bethlehem.
Henry
COB Potomac & Northern
Shenandoah Valley
Check these out, see if it helps.
http://www.rrpicturearchives.net/locoList.aspx?id=BSCX
Also, Google BSC and check out images.
It seems the Bachmann thing is kind of a fantasy.
Mike.
My You Tube
I just got unlettered Bachmann #82057 N scale 70 tonner in Bethlehem Steel livery. Anyone have info on Bethlehem Steel's 70 ton diesel roster? Bachmann has two lettered Bethlehem Steel 70 tonners with #56 and #44 numbers. Any other prototypical numbers? Thanks!
Dave
USAF (Retired)