How much are beano comics worth in very good condition from the 50s and the 60s?
Unfortunately, I don’t think they’re worth an awful lot. The market is fairly small for British comics. Obviously condition is important. Special issues (coronation) or first appearances of characters will be of more interest to collectors. The best way to find out is to have a quick look on eBay, and see the sorts of prices they fetch. You can look at completed auctions as well, to see how much they have sold for in the past. Then, if it’s worthwhile and you were prepared to sell them, perhaps list them on eBay.
