Up for sale is a police officer "chief" real photo postcard. I assume police officer as he is carrying a baton. Made by Freter Bros, Famous Postcards out of Bridgeport Ohio. I'm not sure if thats where the chief was from. Marked AZO with 4 triangles pointing upwards which I believe dates from 1904-1918. 

I just got this from an ohio dealer at a local flea market.

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Condition: Has some gunk on the front to the left of the man. Might clean off. Seen in the second and third photos. Has some creases, especially in the corners. Corners are rounded. Has some indentations (a dot is visible in the 6th photo). These are only really seen when its at an angle. Has a stain on the right side. Seen in the 4th and 5th photos. Has some writing on the back 241 Market Street. Some staining and foxing on the back. See photos.