Same surface texture in the open areas of the fields, as in between the design details.
Needs further investigation:
weight
exact diameter
comparative ping tone
are cheap tests.
Immersion in a corrosive fluid and some subsequent wear is capable of reproducing a similar sort of surface texture as well, but I can't figure out why anyone would want to do that.
Edited by sel_69l
05/25/2018 02:52 am