my father had a stamp collection as a kid which he still has,we were talking about it the other day, he mentioned among them he has a stamp which he asked me to find out. its two swiss stamps still attached together one of the stamps are inverted (upside down) were can i find out more of its value i guess if im onto something i can post pictures

http://www.kenmorestamp.com/free-catalog-request/

 

This is a good place to start.  You could also ebay it and see how much similar stamps have sold for. 

 

Before my father died, he gave me my Grandfathers stamp collection along with a number of very out-dated catalogs.  The collection is cool, a way to feel a connection with a man I don't have many memories of (grandfather). 

Good Luck and enjoy. 

 

Another spot:  http://www.herrickstamp.com/search.php

Thanks alot