This is a great collection of photographs from the Baltimore Museum of Industry I especially enjoy this one of a Fruit Growers Express reefer. I have to find a banana decal now! Does anyone have any

Steve, For a reasonably accurate roster, see the (pay) RPI web site (railroad.union.rpi.edu/) Regards Bruce Smith Auburn, AL USRA box car, gondola and steam engine rosters have been well

Paul Lyons wrote: You must not hang around archives <g>. Tony Thompson Editor, Signature Press, Berkeley, CA 2906 Forest Ave., Berkeley, CA 94705 www.signaturepress.com (510)

USRA box car, gondola and steam engine rosters have been well documented in the last few years. But what about the USRA 2-Bay hopper? I am having a hard time finding an accurate roster. Can someone

As an old architect, we called them "reverse sepias" and that is what used when you sent out a proposed change order to the Contractor, among other things. That way we did not make changes to the

Al- A "Blueprint" is blue with white lines. A "Blueline" drawing is the reverse... white paper with blue lines. You're correct about mark-ups... most common is probably red but yellow and green

< You should call them by the correct name and that is "blue print". They were made by a wet process that was just beginning to go away when I was a young architect but was the preferred process for

Brown lines were used in the auto industry up to the turn of century . . . . primarily for studies and getting prototype parts for concept vehicle builds.  You could also make low-quality blue-print

Cool trucks! I've seen a picture of them under an NYC "USRA" 70-ton hopper; what-all were they applied to? Al Brown, Melbourne, Fla.

Now I know what all those damned things I've bee running into in the Haskell & Barker drawing files are. MOST of what is at the Pullman Library at IRM are the original linens, but occasionally there

Tim- Yes, Google is great... here is another explanation that covers Blueprints, Blue Lines, and Sepias as well as the VanDyke process.... ....since these are formats that older STMFC drawings are

Knowing Baltimore was a key port for unloading bananas I used that that fruit to do a search and 7 images came up. Will try other words later. The searches and images seem to take a while to come

Thanks everyone. I did try googling but nothing jumped out. As Tony describes them, I have seen items like this in my various archives safaris. Bill Welch

Bill Welch wrote: Wikipedia provides the background. I can tell you that Van Dykes don't look too good today. SP used them extensively as a way to distribute copies of drawing and documents, and

Wikipedia, under an article titled 'Architectural reprography.' Ron Merrick

Bill, Google is your friend. :-) http://www.magnumarchive.com/commercial-photographer/Van-Dykes.html

There is a builder's photo of one of these cars, which is in the referenced article -- I saw it the other day. Knowing something about refinery complexes, I would throw out a conjecture that these

Group, The Baltimore Museum of Industry just posted a link to these photos on Facebook and I thought they might be of interest to the group. I have not searched their collection for

The USRA's 1918 Circular #7 related to their Standard Refrigerator Cars says "Van Dykes of the above prints [refering to blue prints they have identified] will be furnished each railroad..." From

Don, What about the D&H? They owned 1000 USRA hoppers and and around 1/4 were converted to panel sides. Regards Bruce Bruce F. Smith Auburn,