I'm not positive of the engine number, but it is a Porter Bell 0-6-0 at Beaver Brook. I have other similar views from Beaver Brook and initially didn't find this view to be very different until I looked closer and saw the locomotive in the background.
I just guessed at it being the #2, certainly no doubt as to the location, the planked siding and large rock with the telegraph pole angle change stood out like the proverbial. Since the published photos show the #1 and the #3 at Beaver Brook but neither photos show the high-staked flatcar behind on the spur. CC #1-2-3-6-7 were all very similar/same with the Bell on the wagontop section of the boiler.
I'm doubting it is the #4 since that built as a Saddle tank, rebuilt with a Tender, later become the #30. Both iterations carried the Bell behind the stack.
The Pict. Sup. id's this as the #4
After several days of searching I could not find a published version of Todd's original photo. I will continue to look. As I looked at the original photo I agree with Chris the loco in question is more likely CC #1-2-3-6-7 and not #4-5. Based on bell and dome configuration.
I've seen a lot of wagons. Seen a lot of wagon tops. I am failing
to see any visual resemblance and being the nitpicker for terminology
that I am, failing to connect the dots on how that design got its name.
"1849-50" is not hard enough evidence for this former law enforcement
guy. Kinda like charging someone with a crime because they happened
to drive through the neighborhood at the time, or just look suspicious !
Take a look at the conestoga wagon and notice that on some models the bows on the ends were higher than in the middle. When covered with sailcloth or denim, these had a pronounced "U" shape.
The wagon top was a slang term referring to one end of the boiler raising up like one end of the top of a conestoga wagon.
This design allowed, in the early boilers, a greater steaming volume and thus more power than the straight or "Shotgun" boiler (not an over and under or side by side) that was the contemporary norm.
As boiler technology went on, it was found that the larger the boiler barrel (back to gun terminology), the more the room for flues and tubes and thus a greater heating surface. Remember, early on the size and pressure were limited by the strength of the iron used to make the boiler barrel. The Wagon Top was especially well suited to this purpose.
When steel came along, and it was much stronger than iron and less prone to stress cracks, the sizes of the boilers on wheels increased, with the majority being shotgun or modified shotgun boilers, until the boiler became a really Big Boy (couldn't resist the pun). And Yes, I like ALCo's.
Yes, and according to Mason's own spec's, the 57 (C&S No 1) had the largest boiler that the DSP&P had built for the 2-6-6T's. Unfortunately, it was a one-of. It had more tubes, thus a larger heating surface than its predecessors.
Ah memories of Beaver Brook.
Around 1974 a friend and I parked on the exit off of I-70 and hiked the trail down to Beaver Brook. It was a wonderful hike for a couple of Colorado rail fans and the high point was a 50' piece of 3' gauge snap track in the middle of Clear Creek. After all those years...
Thanks for tickling the memory buds.