Based on US Navy model dated October 7, 1944 (see other pic); added open bridge platform akin to Iowa[1944]. The Montana was designed to have 4x 3-gun 16"/50cal Mk7 (same guns used on Iowas) and 10x dual 5"/54cal as secondary batteries. Five ships were planned, but none were laid down as Iowa-class battleships and Essex class carriers were given priority.
Requires snips/clippers to remove turrets from under the ship; cut stems to length for hole; and adhesive of choice to affix them.
http://en.wikipedia.org/wiki/Montana-class_battleship