I printed out the two full sized reference images I need for the two planned models, a tape measure opened to 24″ is for visually scaling the sizes in the image.

The one on the right is a W-1 pier capital design from the Washington Irving school, Hammond Indiana, the one on the left is a lunette design from the James Scoville building in Chicago.
The Scoville lunette is from an assembly of two that were sold at an auction outfit for some $15,000, while the pier capital from the 1936 Hammond Indiana school was designed by George Grant Elmslie and William Hutton in the Sullivanesque style by Louis Sullivan. The school was demolished in 2003 and this particulat artifact resides at the city museum in St Louis. I found some great photos of it that were taken by a photographer on a photo sharing site, after I inquired about the artifact’s dimensions he very generously uploaded 109 photos to an album for me to download and see, the 109 photos were all taken of artifacts in the city museum’s collection of Elmslie/Sullivanesque artifacts and others, a real treasure trove and there’s other designs I like that I may also make models of at a later date.
The pier capital will require a little thought as it was originally a 20″ cube, with all but about 5″ of it embedded into the brick wall, the sides of it that were visible had the same triangular designs as the face does, so that presents a couple of issues to decide on, for the interior cast stone the casts dont need to be deep as they would hang ON the wall, but I plan to do these in terracotta and those could be embedded INTO a wall, so if I retain the original configuration of the sides having a design instead of being flat, then I would have to make this considerably deeper- say 7-8″ deep so about 4-5″ can project out while 3-4″ would be embedded, we’ll see what I decide on that, meanwhile I will probably start the Scoville Lunette model first.