What type of fin box is this??

[Kwomack]

I got a board for free because the guy said he couldn't find fins for it. Any help on what fin box it is would be great. It is a Tropical Brasil 6'0" thruster. The closest thing I can think of is maybe LokBox, but the edges have teeth on them and the screw seems to be in a different place.

Any help would be great! We have a fun swell in right now and would love to take her out. Might just have to go finless...

Mahalo

[IB_Surfer]

Red X fin system? they sell them on Ebay I think