My father recently gave a collection. Unfortunatly do to economic conditions I may need to sell off some pieces. What's this worth??? I tried to load larger photos but failed.
Looks like the grade is not bad, but your pictures are very small so it is hard to judge acurately. 3.9820 g., 0.9000 Gold. Currently (as I type) gold is trading at US$1095 per troy oz (fine gold .9999) and the metal value is approx $126.18. However the coin is 100+ years old so a collector may pay a little bit more. Any mount marks on the outer rim will affect value.
You should definately expect something of a premium over gold. German gold 10M pieces are frequently worth more than their 20M equivilents despite having only half the gold content...
Assuming that it's in AU condition or thereabouts, around $200. I've seen the proof version sell for over $600.