A cast iron rim night latch that measures 3-3/4" X 2-3/8 inches high with a 2-1/4" to center of keyhole. The key will hold the latch back until you push the door open and the brass dial when turned will hold the latch back until you release it.  What you see is what you get.

Please take a look at my other 200+ hardware items in my store, thank you.