OPA National insignia The Expanse

This is the OPA national insignia as seen on OPA uniforms since their formation as a nation in season 3 of the TV show The Expanse.

Shout out to SYFY for posting the old-style "spray" logo:
https://www.thingiverse.com/thing:1236133

I'm going to make a badge with this. ;-)

Five files:
OPA_nation1.stl -- The basic logo without back.
OPA_nation2.stl -- The logo in relief with a disc back
OPA_nation3.stl -- The logo cutout from a disc
OPAdisk.stl -- The disc background. It's just a disc.
OPA.svg -- Vector graphic of the logo.