Found it:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=10171&item=7306711140&r...

pretty cl, me want  8) 8)

"Well I stand up next to a mountain,
chop it down with the edge of my hand...."

here is the info on it

This is an EXTREMELY RARE oppertunity to win one of very few existing Jimi Hendrix' Amp's.
It is a Marshall Super 100 Plexi Head which has been in my possetion since 23/9/71. I still have the Original bill of sale from then and the Amp has been 'verbally' authenticated by both Jim and Terry Marshall in 94. There is no way of getting proof of it's history buecause of the fact that no records were actually kept from that time. The serial numbers indicate that the amp is approxomately a 1965 build, and that all the marking's are 'as near as damn it' defenitely a hendrix owned head. Due to jimi's destructive temperament this head is not original out of factory spec. it is as follows: The front and back panels do not match, probably because of a hasty rebuild after a show in the back of a bus...... This amp has an alloy chassis which suffered also from jimi's attacks, no 1 input is damaged probably from the head hitting the deck with a jack plug still in it. Marshall re-biased it for 6l6GC valves in 94 but now KT66's are available it can easily be converted back. I still have some of the original KT66's it came with.

What does it sound like?

This amp is unbelievably LOUD, it has a warmth and a percussive punch that makes my hair stand on end, When i (Very Occasionally) Fire it up! Very emotive of Jimi's sound.

This amp has not been cleaned for a number of years for obvious reasons. It does still have the origanal J.H.EXP logo's stamped on the outside!!!!

This truly is (probably) a once in a lifetime, unique opportunity.

wE RESERVE THE RIGHT TO REMOVE THIS FROM THE AUCTION AT ANY TIME WITHOUT REASON. iT WILL NOT BE REMOVED AND HAS NOT BEEN LISTED JUST FOR THE HELL OF IT. THE AMP CAN BE VIEWED BY VERY SPECIAL ARRANGEMENT ONLY.

TIME WASTERS WILL BE REPORTED AND ALL BIDS ARE FINAL, YOU ARE ENTERING A LEGAL CONTRACT!

POSTAGE IS AVAILABLE AT BUYER COST, BUT TO BE HONEST POSTAGE SHOULD NOT EVEN BE CONSIDERED FOR THIS ITEM! RECOMMEND PICKUP ONLY.