You could join comic book enthusiast forums or groups. Members often share tips on where to find old comics. Another option is to reach out to comic book collectors directly and see if they're willing to sell or lend you some of their old collections.
First off, look at the comic's publication date and edition. Older and first editions can be more sought-after. Also, check for any damage or wear on the covers and pages. The better the condition, the higher the appraisal value. And don't forget about the popularity of the comic series or the characters it features.
Marvel comic books have a long history. They started in the 1930s and have continued to evolve and expand since then. So, they're definitely quite old!
Wolverine's age can vary depending on the comic book storyline and continuity. But generally, he's depicted as being quite old, having lived for many decades.
Spiderman comic books originated in the 1960s and have been continuously published since then. That makes them more than 50 years old. They've gone through various storylines and reimaginings over the years.
Batman's age varies depending on the specific comic book storyline. Sometimes he's depicted as being in his mid-30s, while in others, he could be older or younger.
The value of old comic books depends on several factors. First, the rarity and popularity of the title and issue number matter. Also, the condition of the comic - no tears, stains, or creases - can significantly increase its value.