The Supervising Architects office at the United States Treasury designed and/or built most Federal buildings in the United States between 1850 and 1940.  Some buildings featured the Treasury Department seal on doorknobs.  The beam arms of this design are slightly thiner than those ofP-10140. This knob uses a 3/8 inch spindle and the stem is larger than that of P-10140. Click on each photo below to view additional images and information.