Today, I share some Houdini Collectible Phone Cards and some corresponding ads.
In 1995, these 6 Color Canadian Phone cards were offered by CardCaller(TM). They also offered two (portrait and chains) in black & white.
In 1997, the Houdini Historical Center offered four sets of prepaid phone calls.
Set 2 was due out in June, Set 3 in September, and Set 4 in December.
But as far as I know, they only ever shipped the first set.
Special thanks to Joe Fox for sharing the Canadian Phone Cards and corresponding ad.