Mechanical Fan Postcard Forreston IL Souvenir Sauerkraut Days Festival Pigs 1920

Unused condition postcard Souvenir Sauerkraut Day, Forreston, Ill.
Opens to a fan.
Under the address is No Envelope Required - Affix 1-2 c Stamp and Mail.
Stamps were 2 cents from 1919 to 1932