According to www.anomalies-unlimited.com:
Convicted forger A. Schiller was serving his time in SingSing prison in the late 1800s when guards found him dead in his cell. On his body they found seven regular straight pins whose heads measured the typical 47/1000ths of an inch or1.17 millimeters in diameter. Under 500 magnification it was found that the tiny etchings seen on the heads of the pinswere the words to The Lord’s Prayer, which is 65 words and254 letters long. Of the seven pins, six were silver and onewas gold – the gold pin’s prayer was flawless and a true masterpiece. Schiller had spent the last 25 years of his life creating the pins, using a tool too small to be seen by the naked eye. It is estimated that it took 1,863 sepatate carving strokes to make it. Schiller went blind because of hisartwork.