I doubt they're authentic, based on the paper description, and the fact that a lot of them feature cut-off pilots and tenders. Builder's photos all, it appears to be. Copies of copies, at best, although the subject matter is interesting. We even have a Lehigh Valley Consolidation--the railroad that got the first one.
Frame 'em up and hang 'em on the wall! They'll make great train room décor. Maybe properly scan them first, though.
Third photo down in the first post is the LIRR's "Meteor," which shows up on page 16 of "The Locomotives that Baldwin Built," by Fred Westing. A couple of the steam dummies are in the book as well.
