Sunn Head identity

[mpowered]

Im trying to identify a Sunn Head i have, There is no name or model number, Two kt 88 and two large transformers, two inputs, a sticker on the back from 1968, three rocker switches on the right. two slide switches on left side. three knobs on front. ?

[biltmore]

Do you have a picture?

[EdBass]

200S.

Did someone remove the printing on the front panel? If so it should be, left to right;
Input 1, Input 2, Lo Boost slider, Hi Boost slider, Volume pot, Treble pot, Bass pot, Standby switch, Polarity switch, Power switch.