WOW!!! That is a brass barrel. Most likely European made. This is the first Knee Pistol I've seen with a brass barrel. Between the brass barrel on your's and the hook breech on Stu's, .........first time I've seen either. Very neat.
Thanks for the additional pics.
Rick
Thanks Rick for the information ,please could you approx. date my pistol,i assume this is Turkish
Regards Rajesh