Thanks for your post and for your kind words about this site.
I agree with everything Mike has said. The price does seem reasonable, but depends very much on the presence or absence of the sights and its overall condition.
Falke underlevers are quite hard to fit telescopic sights to, as Mike says. I suppose the question is really what else can you buy for the same price in Egypt? Often modern rifles bought new in a shop for this sort of price are of inferior quality. If you could buy a quality modern air rifle second hand (used) for 150 US dollars, preferably including telescopic sights, that may well represent better value for you than this Falke.
If you could let us have pics that include one of the serial number, they'll be much appreciated.

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