The list of minimum required instrumentation will be in a document called the TCDS (Type Certificate Data Sheet). I'm afraid that I don't have a copy, but the LAME who looks after the aircraft might. Failing that, ring the local CAA office.
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A copy of the MMEL might also be in the POH?
Genghis
I've never heard of this with regard to G-registered aircraft. In fact I've never seen any reference to a Minimum Equipment List anywhere in UK legislation. What's your basis for suggesting that this forms part of a UK C of A (presumably that's what you're suggesting)?
A compass doesn't seem to get a mention in Schedule 4 of the ANO, which specifies equipment required on G-registered aircraft.