Ha! Senile-vu, evidently.

Still, it's good to refresh our collective memories about "not the usual" resources.
What I found for my research blew me away. I was scouring the web for photos... or anything, basically, in the way of references for the concrete tower at Riverside Jct., where the UP split from the Santa Fe after the descent from Cajon. Found a couple of blurry slide scans. However, what also popped up after widening the search was 300dpi blueprints for a tower at "San Bernardino". Funny... looks familiar... OMG, the plans were an
exact mirror image of the Riverside tower, down to the tin roof turbine and the way the stairs wrapped around a corner. I know most of the big roads tried to standardize, but there was too much here on the checklist, so... bingo!
My Silhouette has been gathering dust of late, but here is certainly a worthy project. It would be recalling fond memories of visiting an operator friend there.