Since there's 10 stamps on each block, the 5¢ stamps would be 50¢, the 6¢ stamps would be 60¢, and so on. The total actual FACE value is $6.40. As far as the BOOK value, you'd have to look in a current Scott's catalog to find those figures. I'm a bit of a rogue collector, in that I don't care about value. I know me, and if I started worrying about value, well....... it just wouldn't be fun for me any longer.