a classic. holds 5 plus on one in chamber, so it is a sixshooter....... chambering the mighty mousey 22 long! made about 1951, and has original papers and proofing papers, etc. actually is beautifully machined and polished,etc. i have another one of these, also with box and papers, in .25 auto [ too much recoil for most mice to shoot comfortably ] it works absolutely flawlessly......and really does hide quite nicely in the palm of your hand. i don't know why i like these things.... but they are beautifully made. i remember seeing them for sale in magazines back in the 50's and was determined to get one; the Gun Control Act of 1968 stopped their importation.......like a lot of my collection, i get things that were on my want list from way back.....fortunately this includes things like winchester 18895 405's etc. not just mouse guns.