Japanese Manga Stamps

We received a box today covered in the the Japanese Postal Service's new stamps celebrating "The 50th Anniversary of Japanese Weekly Comic Books for Boys". Pretty damn cool! Since someone went through the trouble of carefully applying the all the stamps around the shipping labels by hand, we naturally assumed the box was for me, sent by one of my otaku friends in Japan. Wrong. It was for Mutsumi, which cracked me up. Guess Kobe's postal meters were busted last week, or they were really pushing these stamps!

So, how many different manga series can you identify here?