The keys on both sides are different.
This is a 7-pin Lock on both sides. So that it is equal to 2 x 7 pins lock
Lock cylinder has openings cut into the pin chambers that allow you to see how it works
You can see clearly how the pins work when a key is inserted
Specifications:
Lock cylinder: Copper
Color: Transparent
Material: Metal
Size: 6.5 x 3.4x 2cm / 2.56x1.34 x 0.79inch (L x W x H)