The Baldwin info comes from a list I was given by Allen Stanley. There were six locos in the group.

45366 Std 0-6-0 3.1917 Bethlehem Steel Corporation, 25
45367 Std 0-6-0 3.1917 Bethlehem Steel Corporation, 26
45368 Std 0-6-0 3.1917 Bethlehem Steel Corporation, 5
45369 Std 0-6-0 3.1917 Bethlehem Steel Corporation, 6
45370 Std 0-6-0 3.1917 Bethlehem Steel Corporation, 7
45371 Std 0-6-0 3.1917 Bethlehem Steel Corporation, 8

The engine clearly has this B&O flavor to it as railroads had their "Family Line" style to them.
Operations behind industrial lines have always been difficult to track. I have a variety of books here but they are scatterbrained around. Some libraries have locomotive collections
things that have never made it to publishing, they sometimes may charge a search fee to dig for something. I will pour over the books here but that will take some time, I may even bumble around some model magazines.

Bethlehem steel had more than one plant.

This is the nearest "look" I have to this engine



except for the tank that does not go over the smokebox.

I've ruled out ALCO as a builder, as I have a book on them. I think I have a Baldwin and Lima book.

Is that Poland Spring as in the water company in Maine?

Re: Poland Spring No. 2.

Yes, this loco was originally owned by the Poland Spring Company in ME.

It is now part of the National Park Service's Collection at Scranton, PA as E.J. Lavino and Company No. 3.

You can read about it in the Special History Study at this link:

http://www.cr.nps.gov/history/online_books/steamtown/shs2g.htm

The JPEG imbedded by dinwitty (and the NPS document it comes from) have either been removed or are currently unavailable, so here's another photo of the Poland Spring #2 as E.J. Lavino & Co. #3 at Steamtown (Scranton):

Henk Tadema photo taken on 7/6/2003: https://www.flickr.com/photos/htadema/9292919089/

I'm looking at other clues such as how the tank in hung onto the engine by these hook hangers.

I think we're hitting a nail on the head that this is Vulcan, I shared the pic on another forum someone responded, yep this that there looks Vulcan.

then this pic



tho a 2-6-2 I look at designing at it all fits in.

The disposition of this engine will have to be contacting people who worked there, I found a site where people were interviewed who worked there, perhaps contacting the current Owners, but I have my doubts they really would know, that why if I can find origin of this engine it may lead me off in the correct direction. I still need to look at the Lima just to see differences etc for the curiosity.

well... somebody scanned the Vulcan book...

http://babel.hathitrust.org/cgi/pt?id=u ... =1up;seq=1

I dont have high speed net, so it takes forever to load pages

Thanks for the link to the 1911 Vulcan catalog!

Below is the closest match to our mystery loco I could find therein:

the domes are wrong but they built them both ways. What nailed it for me is the tank support design. Seems totally unique for Vulcan. Will have to check Davenport tho...

So we all agree now the mystery loco is a Vulcan? I guess it's a start.

The Park Service recently posted a photo of Berlin Mills Railway No. 7, a 2-4-2T Vulcan product, at Scranton, PA in late 1989 or early 1990, on their Facebook page. It shows the locomotive with a light dusting of snow.

More information about Berlin Mills No. 7 can be found in the Park Service's Special History Study at this link:

http://www.cr.nps.gov/history/online_books/steamtown/shs2b.htm

This first photo is an NPS Photo, Tony Pann.

The second photo below shows No. 7 sans saddle tank during the asbestos abatement in 2010. The curved saddle tank brackets are clearly visible.