I found a 500 dollar Confederate States of America Bill. (note) Date 1864 17th of February Richmond .
No: 33546 there is a mann with a Beard on the right corner and on the left side is a mann on a horse and there is something written like:Deo Vindige
Any body has a idea what this is worth?
Have a also a number of other notes like japanese dollar/Nederland gulden from 1941/ 100 Hundert Mark from 1910. (germany) and a number of coins we found at his home.
Thanks stefan (UK)

The Confederate bill (note) might be worth 300 - 500 US dollars depending on condition.
The rest, unknown, take them to a coin dealer.
Or look on ebay.com, eBay.uk, eBay.de.
Peering at pictures and reading descriptions on eBay takes a while but is a good education sometimes.

Thank you