This is an exchange puzzle from IPP 37 in Paris from Allan Stein and made by Siebenstein-Spiele.
Removing the coin from this lunar puzzle might have you thinking you were having a nightmare. The face in the moon seems to taunt you as you struggle to free the coin from this puzzle.
Made in laser-cut wood by Siebenstein-Spiele. Based in Munster, Germany, Siebenstein-Spiele was founded in 1992. Although the company is mainly known for board games, Siebenstein-Spiele also makes many wooden puzzles, several of which have been designed by company founder Jürgen Reiche.
Wood Colors May Vary.