Vintage Indocin Merck Sharp & Dohme Hand Anatomy Model Doctor's Office. 1960's  

Top half of hand is removable to show removable hand bones

Hand dimensions are about:

7 1/4 inches X 5inches X 3inches

It is in very good condition, with no chips, cracks.  It comes with three of the five pieces that originally comprised this model.  It does come with a booklet.  Parts circled in last picture are not included.  Does not come with any slides