Windows for TRRA St. Louis Tower 1

This is an HO Scale set of windows for the TRRA Tower 1 which was located outside of Union Station in St. Louis.  There are 6 Single, 18 double, 8, triple, and 11 quad windows.  Two of each of those are extra.  The opening for the single is 10.5 mm wide by 18.55 mm tall.  The double opening is 21 mm wide, the triple is 31.5 mm wide, and the quad is 42 mm wide.  These were designed for a specific client.