Jumbo Comics #3 worth

The value for *Jumbo Comics #3* (1938) is listed in the catalog at a used price of $1058.18 [1]. This is the highest value among the specific issues you have listed. Comic book value is heavily influenced by the comic's condition, so while this is the sold-comp price, a pristine copy will command the top end of the market. You can compare this sold value against the current asking prices shown on the page to see if it's a good time to buy or sell.