From the inside this 3 Costar boards look identical to the Filcos, but on the outside there are some differences...
- No Filco emblem (obviously)
- No coating on the caps/case
- No stickers on the backside
- Different font on the caps (see pictures below)
NKRO seems to work on both, the one with brown Cherrys and the 2 ones with blue Cherrys.
There was no clear-cover in the packages, but cable-straps with Filco logo on it, lol.
Pictures of the caps (Filco on the left, Costar on the right):