The method of preparing these gores was originally found empirically, but since the days of Albert Darer it has also engaged the minds of many mathematicians, foremost among whom was Professor A.
Albrecht Darer the elder was a goldsmith by trade, and settled soon after the middle of the 15th century in Nuremberg.
The elder Darer was an esteemed craftsman and pious citizen, sometimes, as was natural, straitened in means by the pressure of his numerous progeny.
We cannot with certainty identify any of these as being by the 'prentice hand of the young Darer.
But after travelling two years in various parts of Germany, where we are unable to follow him, the young Darer arrived at Colmar in 1492, only to find that Schongauer had died the previous year.