I have three Trezor devices which I bought at the same time, all three have 2 small marks on the top edge of device.

It looks like something that a tiny needle would do, I'm assuming this is the result of the manufacturing process when melting the plastic?
The location of the marks is roughly pretty much the same on all three devices.

not sure if I explain it correctly, but if someone else has a Trezor device they can propably confirm this 2 marks?