#2
Probably not going to be possible to figure anything out from that. All the vintage-style ones feature staggered poles and besides that any conventional Strat singlecoil is much the same as any other, visually speaking. Are they the stock pickups for that guitar? If so, what's the model?
#3
if they are original to the Strat, you could call Fender Customer Service and give them the serial number. They should be able to tell you what they are. Again... IF they are originals.
--- Joe ---
77 Bradley LPC || 07 PRS CE22 || 11 PRS MC58 Artist || 95/02 Fender Strat || 99 Gibson LP DC Std Lite
06 Ovation Elite-T || 12 Martin GPCPA4
Boss GT100 || Peavey Stereo Chorus 400 || Peavey Bandit 75 || Tech21 Trademark 10