These are used with the Ludlow Typograph machine.  This style has brass caps on the dividers.
They measure 29 "wide x 27" long x 1.5" deep the length.

Each drawers has divisions that have a brass cap. The dividers are on a 1-1/4" grid. Lengths are 4", 3-1/2" - and 2"

I can remove the metal rails if you prefer. Just add a note in you order