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[*]Here you go:
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[*]Multi-layer pickguards: starting in mid-1959 Fender switched to a 3 layer pickguard (w/b/w) made from Celluloid on most models. The Pbass and Jazzmaster used a 4 layer pickguard of Tortoise/w/b/w (except on certain custom colors which used a 3 layer w/b/w pickguard). These celluloid 'guards had an outer white layer with a mint green/yellow tint, thus giving them the name "green 'guard". The amount of green/yellow depends on the abuse and UV the pickguard was subject to. To some degree the effect is not only caused by age and sun, but the "felting" of the black layer below the white layer. This material was used till January 1965 when Fender switched to vinyl or ABS for their multilayer pickguards (Celluloid was dangerous and very flamable, and shrunk with time causing cracks). Sometimes these pickguards are called "nitrate 'guards" because nitric acid is one of the key ingredients used to make celluloid. The 1965 and later white pickguards do yellow a bit with age. But even aged white 'guards look much different than the older "green" 'guards. In the late 1960s, white Stratocaster pickguards change slightly (not sure about other models). Though from the front they look identical to the 1965 to 1967 variety, the 1968/1969 white Strat pickguards had a bottom layer (the layer not seen unless the pickguard is removed from the body) of "pearloid".
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