Where do the shims go on the front callipers ?

Hi all, Im a new member here looking for some advice. The brakes on my XJS project were seized on. I have removed the front callipers and thought i was being careful to see where everything went, clearly not careful enough. On the nearside about 10 seconds after i had removed the calliper a washer dropped down. On closer inspection it was three very thin washers stuck together with grease and dirt. I have a had look at the calliper and the mounts to see if there were any marks indicating where they came from but nothing. Can any body tell me whether these are normally on the top or bottom bolt and also which side of the calliper. I presume they fit on the outside, ie. between the calliper and threaded mount. On the drivers side there wasn't any. The car is a 1985 cabriolet.