Magnetic Silver & Copper by Johnson Precision Magic

A number of different routines are supplied, but the combinations
possible with this unique set of coins are limited only by your
imagination. Here is just a sample: A drinking glass is held in a
horizontal position and two coins are set inside: an English Penny and a
Half Dollar. The glass is slowly tipped up causing the coins to slide
towards the bottom. When they reach the bottom, the Penny penetrates
through the glass and falls onto the table leaving just the Half Dollar
in the glass. Effect No. 2 A handkerchief covers the mouth of a
drinking glass. Two coins are resting on the handkerchief. As they are
picked up, one of the coins passes through the handkerchief and drops
into the glass. Not one unnatural move from start to finish. It's easy
to see why this is one of our most popular items. A four-piece set
that features tremendous versatility. Easy to follow routine included.