The Copenetro Booklet now brought to you by Viking Mfg. Co. Copenetro, Coins in Glass is used the world over by professional magicians. The Kline Copenetro booklet is a must-have for anyone using this great effect. Ideas and routines submitted by Ganson, Joe berg, Cossari and others, will open up a new world for the user. Prize-winning tips and routines for Kline’s Copenetro! Revised edition; 2015.