WW2 German postcard Work, Fight, Sacrifice

A very nice WW2 German propaganda card in mint condition.

The front shows on the left side a printed image workman with a hammer, a soldier and a collecting box.
Beneath the text (translated) “Fight, Work, Sacrifice”.
On the right side is pre-printed postal stamp.
This stamps has the word “winterhilfswerk” on the top, so that we know that it is sold in benefit of the National Socialist People’s Welfare Organization to help finance charitable work.
This is also shown in the ink stamp in the middle with the eagle, with WHW beneath it.

Card is in excellent condition.

The back is written and is dated 17 December 1940.