United States Post Office Baltimore Maryland 1933 postcard

United States Post Office and Court House, Baltimore, Md.

4A-H1815

I & M Ottenheimer, Baltimore, MD.

C.T. Art-Colortone. Reg. US. Pat. Off.

Postcard circa 1933

Reference: https://www.newberry.org/sites/default/files/researchguide-attachments/Teich_Postcard_Dating_Guide_2016.pdf