0/PDMCreative Commons Public Domain Mark 1.0falsefalse English The Coptic letterOmega (uppercase and lowcase), from Athanasius Kircher's 1697 book Turris Babel
0/PDMCreative Commons Public Domain Mark 1.0falsefalse English The Coptic letterOmega (lowercase), from Athanasius Kircher's 1697 book Turris Babel determination