Solot Series

Solot Series
Solot Series
	One-solot stamp
Date of production	4 August 1883
Printer	Waterlow and Sons
Dimensions	28 mm × 23 mm (1.10 in × 0.91 in) (solot, att & siao); 25 mm × 22 mm (0.98 in × 0.87 in) (sik); 30 mm × 25 mm (1.18 in × 0.98 in) (fueang & salueng);
Depicts	King Chulalongkorn
Notability	First issue of Thailand
Face value	1 solot, 1 att, 1 siao, 1 sik, 1 fueang & 1 salueng

The Solot Series (Thai: โสฬส, pronounced [sǒː.lót]) was the first series of definitive stamps issued by Thailand, then known as Siam. It consisted of six face values, each of one solot, att, siao, sik, fueang and salueng, currency units prior to the decimalization of the baht. The series was printed by Waterlow and Sons in London, and was first issued on 4 August 1883, coinciding with the launch of Siam's postal service. Stamps in the series depicted King Chulalongkorn in profile, facing the frame's left, and were neither marked with the country name nor values in an international script. This necessitated the series' replacement in 1887 to comply with the standards of the Universal Postal Union, which Siam had joined in 1885. It is the only series to refer to each of the old currency units; subsequent issues had their values denominated in att. The one-fueang stamp never entered circulation as they were not delivered in time for the postal service's opening.