Reproduction Luger P 08 9mm snail drum "Trommel" magazine.  I have personally tested this magazine firing live ammo thru my Luger P-8, and it is in working condition.  Be aware that this is 100 plus year old technology and can be tempermental.  Magazine is sensitive to bullet overall length and ammunition that is too long will bind and not feed reliably.  Good used condition with normal wear and tear.