The MicroRoo, made from an actual Australian $1 coin, has the capacity to encapsulate the Micro SD memory card.
Ken Berger writes:
William Mills writes:
Thanks for the E-Sylum's! I am reading this one in the airport at Kuala Lumpur. I just wanted to add that I have in my collection what appears to be a contemporary Paraguayan 1870 4 Centesimo that is hollowed out. The obverse and reverse screw together. From the toning I would say it dates from the era that the coin was manufactured. Why it was made is anyone's guess.
To read the earlier E-Sylum article, see:
MORE ON SECRET COMPARTMENT COINS
Wayne Homren, Editor
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