The aim of this paper is to present for the first time a new Byzantine coin hoard which was discovered in Bayindir. The hoard consists of 113 billon trachea. The paper demonstrates the significance of the hoard with reference to its overstrikes, and to the numerical predominance of Theodore I Lascaris’ Second Coinage, which is abundant in Turkish hoards and almost absent from Greek deposits. The evidence of the present hoard is supplemented with another published hoard of Turkish provenance, the ‘Ağacik’ hoard, which marked the beginning of putting on record a large range of hoard evidence from Turkey. The ‘Bayindir’ hoard is a strong indicator of the diffusion of the Nicaean coinage in the western coastland of Asia Minor during the second decade of the 13th century A.D, and offers new insights into the economic activity of Theodore I, who fought against his Byzantine rivals, the Latins and the Turks.