Hi Brandon, There are several different variations of the 2 1/2 Newhouse traps. Some are more common, and some are very uncommon. As with most Newhouse traps there is a wide difference in what is rare and what isn't. For example, with #4 Newhouse trapst here is a huge variation between the typical number 4 Newhouse trap or the number 4 with center clutches. Both traps are stamped on the pan No. 4. Here is a example of what I'm trying to explain. This is a photo of a 2 1/2 with rivited teeth. It is a very scarce trap even though the trap is not in the greatest condition. I paid a lot of money for this trap about three years ago. Bottom line is before selling a Newhouse trap find out if it's common or rare.