Card Go was created by Jack Hughes around 1938 and it is a brilliant idea even if the name doesn’t sound like much. Since Jack created it there have been a number of effects using the same principle and El Duco’s Impossible Transfer is one of the nicest variations you will find.
The quality is better than the Jack Hughes version and the routine includes a nice twist that allows you to vanish the card instantly and then have it appear in an envelope. The card can even be signed. Although some of the old El Duco items are still made these are not one of them and are now hard to track down.
(Notice: Includes: Printed Instructions.)