Found this on the bay. You'd have to be pretty far gone to use it & probably fight your way through the clamour of collectors! Oh, & it's very fairly priced on a BIN.
VINTAGE LETTERPRESS PRINTERS BLOCK DUBL DUCK RAZOR XMAS on eBay, also Type, Cuts Printing Blocks, Printing Graphic Essentials, Printing Graphic Arts, Business Industrial (end time 17-Apr-09 10:33:15 BST)
Cool though.