I have a later version Submarine with Ultrabass switch that I don't have much use for. Works as it should. I think the knobs aren't original.
Here it is on my board:
I'd like to trade for something nice and boutique-ish (Darkglass, Iron Ether, etc.). Judging on recent sales, trade value is around 150$, I figure. I will consider dirt, octave and chorus pedals, but run your offers by me, worst I can say is "no thanks".