My LP copy came without one...it's probably 35 years old at least and been through who knows how many owners, so it's lost to the sands of time.
I need to get one for it...not only do I think Pauls look "not right" w/o a pickguard, it appears as if mine once hung in a shop window for a long time, because it has "tan lines" where the pickguard should be:
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In fact, I'm trying to decide between a black or cream colored pickguard. If I went with cream, I'd also change the pup rings and selector ring to cream.