I have that same throne,..only it`s Sonor !! To close it ,you just pick it up, to open it ,you just turn it upsidedown !! Sticker in the same spot too !!
Trixon ended production in 1972 and both Tromsa and Sonor started kicking out designs immediately after that , that were very Trixon reminiscent. Trixon had somewhere in the neighbourhood of 700 employees ,I believe, so undoubtedly quite a few of them ended up in other German drum factories----ideas got borrowed. When Trixon quit, all of a sudden there were Tromsa(and the American marketed stencil, Roxy) drums around in Croco wrap and snare stands, labelled Roxy, that were clearly made with Trixon moulds or even in the Trixon factory.