Stamp Desk / Scripts of the world
Siam, 1883 (one sio)
A young king in profile, with round numerals in the corners, printed in red.
Illustration of a historical stamp for learning, shown at screen size. Not valid for postage.
How to read it
Thai script and Thai numerals ๑ in the corners, around King Chulalongkorn: Siam, today Thailand.
- 1เสี้ยว: sio
- 2๑: Thai one
- Inscription
- เสี้ยว · ๑ ๑ ๑ ๑
- Meaning
- เสี้ยว is sio, worth two att; ๑ is the Thai numeral one. No country name.
- Issued by
- Kingdom of Siam
- Today
- Thailand Flag of Thailand
- Year
- 1883. Issued 1883, Siam’s first stamps.
- Made by
- William Ridgeway (also Ridgway) (designer and engraver, died 1900)
One fact
The sio was worth two att; the 1883 stamps were engraved in London by William Ridgeway.
Source and public-domain rule
Creators died more than 70 years ago. Every named creator died more than 70 years ago: William Ridgeway (also Ridgway) (died 1900). Copyright lasts for the life of the author plus 70 years, counted from 1 January of the year after death. Every named designer and engraver of the stamp died before 1 January 1956; any contributor who was never named counts as anonymous, whose term is 70 years from publication, and the stamp was published before 1956. Legal sources: Directive 2006/116/EC, Art. 1(1) life + 70 years; Art. 1(3) anonymous works 70 years from publication; Art. 7(1) comparison of terms for works from outside the EU; Art. 8 terms run from 1 January, Switzerland, Norway.
Scan: Thai stamp 1st sio.jpg on Wikimedia Commons (revision 1269667666), licence templates {{PD-old}}. Downloaded 2026-10-22, sha256 7657f39427d9…; cropped and cleaned for this site. Facts checked 2026-10-22 against source 1 and source 2. Open review note: Scan is 362×422 px; shown without upscaling.. Research record, not legal advice; a second check of these rights by a person is planned, and a stamp that turns out not to be free to use will be removed. Spotted a mistake? Tell us.
