C-Crown stamp 4 mm

Carl Gustafs Gevärsfactori Eskilstuna a stamp with a crown over a C in 6 mm. Stockholms Vapenfabrik bought all stamps reminding from GF when they decide to close down the factory in 2012. We now put 100 pcs of the 6mm crown stamp in a numbered box (the byer gets them in order after each other) and sell them to collecters. There are only a 100 pcs of this stamp reminding. Very rare.