Check out the Detective Comics #31 Silver Foil DC Comics Silver Collectible. Detective Comics #31 was released in September 1939 and features a BATMAN™ in his first battle with THE MONK™. Reproducing this sought-after cover on 35g of fine silver brings Bob Kane’s artwork to life once again with color and engraving that make every element standout. With original copies of Detective Comics #31 selling for thousands of dollars, now you can get this precious metal replica and enjoy a piece of comic history! This replica cover is presented in a sturdy acrylic holder, designed to frame the foil and allow for easy display, and packaged inside a complimentary themed carrier.