1921 AD., Germany, Schwarzburg-Rudolstadt, Bad Blankenburg, Notgeld, 50 Pfennig, Menzel 1593.

Germany, Schwarzburg-Rudolstadt, Bad Blankenburg, Notgeld, 1921 AD.,
50 Pfennig (24 mm / 5,10 g), iron, axes medal alignment ↑↑ (0°), reeded edge,
Obv.: KOMMT, LASST UND DEN KINDERN LEBEN ! / • FRIEDR. FRÖBEL • , bust of Fröbel facing right, his credo above.
Rev.: BAD BLANKENBURG THÃœRINGER WALD / 50 / PFENNIG / * 1921 * , issuer, value and date between stars.
Menzel 1593 ; Lamb 45.3 .

Friedrich Wilhelm August Fröbel (or Froebel) (April 21, 1782 – June 21, 1852) was a German pedagogue, a student of Pestalozzi who laid the foundation for modern education based on the recognition that children have unique needs and capabilities. He created the concept of the “kindergarten” and also coined the word now used in German and English. He also developed the educational toys known as Froebel Gifts.
Friedrich Fröbel was born at Oberweißbach in the Principality of Schwarzburg-Rudolstadt in Thuringia. He began manufacturing playing materials in Bad Blankenburg. In 1837 he founded a care, playing and activity institute for small children in Bad Blankenburg. From 1838 to 1840 he also published the magazine Ein Sonntagsblatt für Gleichgesinnte (“A Sunday Paper for the Like-Minded”).
In 1840 he coined the word kindergarten for the Play and Activity Institute he had founded in 1837 at Bad Blankenburg for young children, together with Wilhelm Middendorf and Heinrich Langethal.