|CB&Q Collection, Newberry Library, University of Chicago|
|FSA-OWI Collection, Library of Congress|
If there is one nit, the thickness of the pipe is out of scale. However, that is necessary to preserve some strength. It's not grossly oversized and the benefits of actually having these pipes outweighs the slightly out of scale thickness.
They are available at the Iowa Scaled Engineering website. There are several sizes from which to choose. The ones I purchased were $5.00 for a 4-pack and I purchased 6 packs to make a load with 24 pipes.
|I consolidated three packs (12 pipes) into one container, as shown here|