The Unique Plans of Bashira Tetumra is a 1573 years old piece made by Bashira Tetumra, a architect living in Istanbul / Constantinople / Byzantium.
Considering its age and the quality of the work, people consider it of high value.
It is engraved with central asian patterns and some symbols pertaining to Gnosticism.
This piece is a generous donation made to Istanbul / Constantinople / Byzantium in 446 by Isaac Tetumra, benefactor, who wanted that everyone enjoyed it.