What is the best resource for determining the value of antiques?

I have recently inherited a wide variety of collectible and keepsake items from my grandparents. Due to space and financial necessity, (single mother of three teenagers) it is necessary to choose wisely the items to pass on and what to part with. (items such as: comic books, WWII artillary, Occupied Japan, coins, postcards, tools etc.

Tagged as: Antiques, Best, Determining, resource, Value