This is a rare dividing head which uses Levin or Derbyshire 10 mm (D)  collets for watchmaking or clock-making-scale work.  It functions as it should.  Please see the pictures and ask if you have any questions.  I have two and need to downsize so I'm selling one.  This is the same design as larger dividing heads but palm-sized and is useful for cutting miniature gears and many other operations.  The indexing plate has two sides of holes with 15, 16, 17, 18, 19, 20, 21, 23, and 27 on one side and 29, 31, 33, 37, 39, 41, 43, 47 and 49 on the other.  There are 40 turns of the handle per revolution of the spindle.  As with larger dividing heads, there is a pair of arms which can be set to help you keep the handle advancing in accurate increments.  If you do small scale machining, and especially if you use 10mm collets, this will quickly become one of your most-prized tools.  I will give the buyer a 14 day right of return but return shipping with signature confirmation is at the buyer's cost.  International shipping is via eBay's Global Shipping Program at whatever they charge (I have no control or even knowledge of what they charge the buyer).