On the pit walls there were visible markings from a pick.

Some individuals also have visible markings just behind the head.

There were regular markings, faintly visible, in the surface of the carapace.

There were no large markings visible on the stubby body, but that was not unusual.

The van had no visible markings to suggest it was an ambulance or a protected vehicle.

There are no visible markings on the checks to show that they were deposited or sent through the banking system for payment.

Plain white, legal size, no visible markings, at least on the side touching the glass.

Some individuals become almost black with few visible markings.

"Recovery" - A ship is found with absolutely no visible markings.