You can also look at the craters.
rev type 1

rev type 2
The crater sides have been smoothed.

rev type 2

rev type 3
The crater above the L in dollar has 2 small craters in it.

rev type 1

rev type 2
The crater sides have been smoothed.

rev type 2

rev type 3
The crater above the L in dollar has 2 small craters in it.
























