Vintage Simmons Drums (UK) Users Group

Hi,
I don't know if anybody even noticed, but the analog Clap Trap
appeared in two different faces (different knobs, different font type,
different arrangement of control components). I guess one is an older
Musicaid version, the other already shows the new Simmons logo. Does
anybody have both an can tell something about this (Thomas?)? Do they
technically differ or is the younger version only facelifted?
Thanks