The first is like the classic Krug style and by Royal, in original package with original instructions.  

The second is one many have not seen which is by Tricks Company Japan entitled Astro Glass in original box with illustrated instructions.

Both are made so that a playing card or business card may be placed under the clips and a pencil or other pointy instrument may be pushed through leaving obvious holes in the card and yet when removed, the clear part is without damage!  Also included is a nearly full deck of Bridge size cards to get started.  Condition First Rate.