Even if the first one has been refinished (and this appearance could relate to the use of flash in the photos), if in good firing condition it would be worth more than $700 as a shooter.
The area of the left grip that is smooth was probably sanded smooth to provide comfort for a right hand shooter's thumb. Nothing else in your photo implies that level of wear on the pistol. You'll see the bore when you handle the Luger yourself.
A "Sear Safety" is an additional metal tab that is riveted to the top of the sear bar on the left side of the pistol (which is not shown in any photos posted).
The police marked E/L pistol would be considerably more rare here in the USA, and I would think more attractive and valuable, all other things considered.
Marc
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 Igitur si vis pacem, para bellum -
- Therefore if you want peace, prepare for war.
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