Here is the Model 64 cash box overall view. The box is released from the register by raising a lever at the back of the box that is "L" shaped with the downward going leg normally behind the register frame. When it is raised the leg clears the frame and the box can be removed. The mechanism can be seen near the divider between the right two folding money bins. The bin has delightful patina. At the back of the front four change bins the bottoms of the rear dividers are worn away from countless finger trips in to scoop up change. The right rear bin has almost no wear at all. It also appears that the top of the very front board is worn in a "U" shape with the wear highest on the left and getting less to the right. This would follow the convention of lowest denomination bills on the left for a right handed clerk.
The rear of the drawer (upside down) shows the release mechanism and the (in my view) Rube Goldberg spring that throws the drawer forward when a key is pressed. It is fairly powerful. Do not defeat the drawer release mechanism and strike a key if the drawer can be propelled out of the register to fall to the floor.
For human interest, the bins were full of change that had been put into the register over the many years since I have had it. In one drawer had been put memorabilia including some British coins, a P-38 Vietnam era folding can opener and prizes from Cracker Jacks packages dating from my childhood in Chicago during WW II. One bin was full of Susan B. Anthony dollars that were given out for match winner or small groups in rifle shooting. Several of the original screws (which have been replaced are seen. The largest screw fits the top sign mounting holes.) Notice that there are two artillery pieces and an old train from the Cracker Jacks boxes. The small gold train comes from a later period.
The images were all taken with a Nikon D5 hand held in available light. Background clutter was removed from around the subject matter in Photoshop. A layer added below that and filled with a foreground color that then becomes the surrounding background color for the finished image. This was all done rather quickly and is not up to professional standards but will do for this post.