| Date | 1840's-1870's |
| Technique | (Text on Reverse) |
| Category | Ottoman Empire And Turkey |
The Kingdom of Bithynia (Bithynia) is a state that ruled between the Gulf of Izmit, Istanbul, Sakarya and Bursa between 377 BC and 64 BC, and its capital was Nikea (Iznik). The Bithynia kingdom was founded by the Bits of Thracian origin.