• Made in Kalamazoo, Michigan (later, around 1968 was made in Lincolnwood, Illinois).
• 100% original. Original cable too.
• 9037 on front, seems to be the serial number. According to coda-effects.com it was manufactured in very early 1966.
• 100% full working fuzz itself but original jack needs fix or substitute, it sounds scraching depending on what position is plugged to the guitar (as it usualy happends when a jack cables is very used, remember this is 57 years old pedal!!!).
• One 1.5v battery

Note for newbies with fuzz: remember that fuzz sounds really amazing when you cranck the amp. This fuzz specially sounds raw, thin and raspy (someone calls it ugly) with a clean amp.