UP FOR YOUR CONSIDERATION IS A VERY NICE RARE ANTIQUE MERMOD FRERES SWISS CYLINDER MUSIC BOX WITH 4 INTERCHANGEABLE CYLINDERS. EACH CYLINDER PLAYS 6 TUNES FOR A TOTAL OF 24. WHEN I PURCHASED THIS IT WAS MOUNTED IN A HOME MADE CASE WHICH HAD TO GO. MECHANISM IS IN GREAT WORKING CONDITION AND SUPER HIGH QUALITY. MARKED WITH THE MERMOD FRERES "M F" AS WELL AS THE NUMBER 1816 SWISS. TOTAL LENGTH OF THE MECHANISM IS 16 INCHES ACROSS, WIDTH IS 7 INCHES. HAS THE JADOTS PATENTED SAFETY CHECK L...EVER WHICH IS PATENT SEPT 22 1886. PATENTS ON THE MACHINE ARE SEPT 22 1885, DEC 6 1887 AND MAI 8 1888 ALONG WITH THE D.R.P. NUMBER 13585. JEWELED BUTTERFLY GEAR AND ALL TEETH ON THE COMB ARE COMPLETE WITH ALL POINTS IN TACT COMPLETE. STRONG MAIN SPRING WITH ORIGINAL CRANK AND ORIGINAL MOUNTING SCREWS. ALL CYLINDERS ARE INDIVIDUALLY NUMBERED. ADD THIS TO THE RIGHT CASE AND YOU WILL HAVE AN ABSOLUTELY GREAT MUSIC BOX. I WOULD BE HAPPY TO ANSWER ANY QUESTIONS THAT YOU MAY HAVE. I SHIP EVERY DAY AND OVER PROTECT WHEN PACKING. THIS IS A NO RESERVE AUCTION WITH LOW PRIORITY MAIL SHIPPING !! THANK YOU FOR LOOKING AND GOOD LUCK !!On Oct-19-20 at 08:17:40 PDT, seller added the following information:NOTE: I HAVE BEEN ASKED BY A FEW INTERESTED PARTIES ABOUT THE NUMBERS STAMPED ON THE MACHINE AS WELL AS THE NUMBERS STAMPED ON THE CYLINDERS. THE NUMBER STAMPED ON THE MACHINE UNDER THE SHAFT OF THE REMOVABLE CYLINDER IS: 112747 THE FOUR CYLINDERS ARE AS FOLLOW:1, INSIDE NUMBER IS: 113718 OUTSIDE NUMBER IS: 12502, INSIDE NUMBER IS: 112111 OUTSIDE NUMBER IS: 12553, INSIDE NUMBER IS: 111913 OUTSIDE NUMBER IS: 12634, INSIDE NUMBER IS: 111555 OUTSIDE NUMBER IS: F.P. 1264On Oct-19-20 at 08:25:00 PDT, seller added the following information:CYLINDERS ARE 7.5 INCHES LONG NOT INCLUDING THE SHAFT. JUST THE CYLINDER.