Nikon 60-well plate holder for Nikon Inverted TMD diaphot. This unit is new in original packing only opened to photograph. It allows the operator to place a titer plate on the stage of the diaphot TMD inverted microscope. The Nikon number is 78970 and the dimensions are 141mm X 100mm on the bottom side, top side is 165mm X 100mm.  The plate insert dimensions are about 80mm X 114mm. Included are the stick on numbers and alphabetical inserts. Thanks for Looking!