Lubor Fiedler invented this effect c. 1972 when it was released as Dosen mit Zeitzündung. It was independently invented by Phil Matlin of Canada as Silver Sanctum c. 1979, and later released c. 1985 by Viking Mfg. as Sorcerer’s Stone and again c. 2007 by Viking as Sorcerer’s Stone Improved. It was also released by Howard Schwarzmann Limited Editions c. 1991 as Lubor Fiedler’s Time Control Capsules, and again by Hank Lee c. 2002 when he purchased the Schwarzmann line.
As with so many of Lubor Fiedler’s ideas it is a brilliant and fundamental idea with many applications. And based on the number of times it has been released and improved it clearly has some legs and has inspired some great minds.
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