That s so low for a old collection like this
As I said, I am not interested in buying it, frankly at any price. As a collector of coins and notes I am horrified by the condition of those. As any collector will tell you condition is everything. Condition is what makes the difference between a rare $1000 penny, and a rare penny. Most of it isn't that old either. Sorry to be the bearer of bad news.
I suggest you take out all the stained notes and try to spend them. The ones not covered in weird brown crap try to sell as a lot. Those might be worth a little.