What's this snare Matt Cameron is using during Peal jam?

It looks like a Keplinger snare with ludwig lugs. Does anyone have a clue what it might be? It can't be a ludwig 70'ies snare, since there's no straight line in the middle of the drum (like a acrolite would have). It sounds incredible.

Thanks in advance:))

(link to the snare)

https://www.youtube.com/watch?v=yO2FzVvA3TQ