Chas. H. Lilly Co. Building, 1911
The back side of the Chas. H. Lilly Co. building featured earlier has one more sign, this one on the west facing wall. It's below the all-too-obvious "CITY SIGN CO." at the top.
"SALESROOM ??? 2nd & TAYLOR" can be made out fairly easily. If you can read the word after Salesroom, let me know. You can see if from SE 2nd between Oak and Ash.