Since you're already familiar with the workings of the "Becker Coin Purse," we'll skip to the cased Lucite block. The block actually consists of two pieces. It is, in fact, a contemporary picture frame. It measures 7 1/4" wide x 5 1/4" deep x 11 1/8" thick. The trade name is "Acrylo," manufactured by Canetti, Inc., New York, NY 10001. No further address appears on the carton. I purchased it at the Museum Store in Phoenix, however, any similar type frame will do. In fact, as a last resort, purchase a 2-piece 8" x 10" Lucite photo mount in a sports memorabilia store. They're secured by four screws in each corner. I also made up this effect using this frame as well.
My black leather brief case was fashioned by good friend Roy Roth. It's 10" x 7" x 2" thick and has a zipper on three sides. I also used a black, spring-opening "Elbe" binder to hold the 8" x 10" Lucite frame. These can be found in your local stationery or office supply store. They look like a book, but the spine contains a strong spring that can be forced open to hold about one inch of paper. They must be black because the effect depends on the "black art" principle. In fact, you must line the inside of the covers with black construction paper, glued in place.
Trim a sheet of black construction paper to fit inside whichever Lucite frame you're using. If you now place the frame inside either holder, the block will appear to be totally transparent. The "Diffusion Principle" is employed to create a duplicate dollar bill, one with a serial number that matches the one on your force bill. I usually use two bills taken from a sheet of 32 bills as described in the effect, "Serial Killer," to provide me with two identical bills. I'm looking at a 32 bill sheet this very moment. The two bills I would use have the following serial numbers: K99900414A and K99940414A. As you can see, the numbers are identical except for one digit. From another bill on the same sheet, using an X-acto knife, I carefully cut out the digit "4" from the serial number. A tiny speck of glue is placed on the back of this digit and it is placed over the zero in the K99900414A serial number. That gives me two bills with identical serial numbers. Naturally, the cut lines around the pasted on digit are evident. Here's where the "Diffusion Principle" helps out.
From a well stocked office supply store, obtain two (2) sheets of 11 5/8" x 9" "Kleer-File Folder" (manufactured by The Angler's Group, Flushing, NY. Stock no. 10.). These sheets are made of durable, .012 embossed-finish clear vinyl. Note the words, "embossed-finish." These sheets have a pebble grain finish that is essential for our uses.
Cut two pieces exactly flush with the edges of the Lucite frame. Center the gaffed dollar bill on the black construction paper and affix it with double sided scotch tape. Place it between the two pieces of Lucite with one sheet of vinyl in front of the side containing the dollar bill and one covering the reverse side of the black paper. Bind the two sections of the frame together using either the rubber bands that come with the "Acrylo" type frame or the four screws that hold the sports picture frame together. If you check the dollar bill, you'll note that the pebble grain finish of the clear vinyl diffuses the cut lines around the pasted on "4" and the bill appears to be perfectly normal.
Mount the "Acrylo" frame inside the leather briefcase using adhesive backed Velcro on the long, bottom edge of the frame. As a result, if you view the block looking at one side of the frame, it appears to be totally transparent since the black paper inside the frame blends in with the black surface of the briefcase (or folder). Viewed from the opposite side, the dollar bill is visible, apparently sealed inside the Lucite. Obviously, when I initially show the block, the audience is looking at the "empty" side. After zipping up the case, I hand it to the spectator to hold, casually reversing the briefcase. Later, when I open the case, the bill will mysteriously "appear," embedded in the Lucite block.
When I appeared at the I.B.M. Convention in England in September 1991, I utilized a version of this effect employing British £ 5.00 notes. Roy had obtained ten bills with the serial numbers in sequence and it only took a few minutes to customize the effect to British currency.
It's actually a very simple premise, but an inexplicable mystery when performed in combination with the serial number divination. Believe me, the sight of those three identical serial numbers on the pad and the appearance of the bill embedded in Lucite caused quite a stir.
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