At first glance this small hand colored map looks like any run of the mill map of the nation at the time, but this has a unique little difference. With the recent Gadsden purchase, also known as the "Venta de La Mesilla", or "Sale of La Mesilla" the US acquired the Mesilla Valley, and this map is one of only a few we know of that shows a Territory of Mesilla in the place of the recent purchase. A nice little oddity that we don't come across often.
Condition is good. Image size is approximately 4.75 x 7 (inches)