Now you want to look at the dovetail edge of the drawer.
Following this era was American Empire 1815-1835 , then Victorian 1837-1901 of which machine made furniture began in 1840.
Centennial furniture was born in the traditions mentioned above debuting at the 1876 International Centennial Exposition in Philadelphia.
On a period piece, you should see what is called a chamfered edge.
It is a thick board planed to a wedge that fits in the bottom slots of the drawer.
What you are looking for is handcrafting and age compared to machine made with less age.