i have a 1975 big muff pie, that is violet. i know that is is rare, but i dont know what it is worth. i know it has the FS36999 transisters. and thats all. it was in my dads and he gave it to me it was in his cabnet and he was going to toss it away. he got in 1976 with a les paul and a kustom amp. for 500 bucks everything was stolen exept the big muff. but i just want to know what i have. the picture is not even close to how clean mine is there is not 1 scratch on it. does any one have any info or anying thing on this or what is is worth. thanks