Groton Bridge & Manufacturing Catalog

I never expected to find one of these on e-bay, but it pays to be persistent. The catalog does not have an actual date printed in it. Someone penned (with a ballpoint) the date 1887 on the cover along with the name "Gus Marie".  the traction engine depicted in the catalog has wood spoke front wheels does place the catalog before my engine, so 1887 seems close. I have scanned the images in using my flat bed scanner and stored them as GIF files. The images are 8 bit color (256 colors) and all images are 1024 pixels high. All of this is a compromise between view ability and size of the files.