An announcement of the Siamese government on the schedule of the ceremony for elevating the title of the ruler of <a href="https://en.wikipedia.org/wiki/Syburi" class="extiw" title="w:Syburi">Sai Buri</a> from <i>Phraya Sai Buri</i> to <i>Chaophraya Sai Buri</i> and for conferring the royal decoration <a href="https://en.wikipedia.org/wiki/Order_of_Chula_Chom_Klao" class="extiw" title="w:Order of Chula Chom Klao">Chula Chom Klao for the Outer Court</a> upon him on 29 August 114 <a href="https://en.wikipedia.org/wiki/Thai_solar_calendar#Rattanakosin_Era" class="extiw" title="w:Thai solar calendar">RE</a> (2438 <a href="https://en.wikipedia.org/wiki/Thai_solar_calendar#Buddhist_Era" class="extiw" title="w:Thai solar calendar">BE</a>, 1895 <a href="https://en.wikipedia.org/wiki/Common_Era" class="extiw" title="w:Common Era">CE</a>), as published in the <i><a href="https://en.wikipedia.org/wiki/Royal_Thai_Government_Gazette" class="extiw" title="w:Royal Thai Government Gazette">Royal Thai Government Gazette</a></i> on 1 September 1895 <a href="https://en.wikipedia.org/wiki/Common_Era" class="extiw" title="w:Common Era">CE</a>.
Government of Siam (now Thailand).
1895-09-01
"<a rel="nofollow" class="external text" href="http://www.ratchakitcha.soc.go.th/DATA/PDF/2438/022/189.PDF">Kanluean yot phraya sai buri pen chaophraya sai buri lae phraratchathan khrueang ratcha-itsariyaphon chunla chom klao fai na long wan thi yisip kao singhakhom rattanakosin sok nueng roi sip si (phutthasakkarat song phan si roi samsip paet)</a>" [The elevation of the title of Phraya Sai Buri to Chaophraya Sai Buri and the conferral of the royal decoration Chula Chom Klao for the Outer Court on 29 August 114 <a href="https://en.wikipedia.org/wiki/Thai_solar_calendar#Rattanakosin_Era" class="extiw" title="w:Thai solar calendar">RE</a> (2438 <a href="https://en.wikipedia.org/wiki/Thai_solar_calendar#Buddhist_Era" class="extiw" title="w:Thai solar calendar">BE</a>, 1895 <a href="https://en.wikipedia.org/wiki/Common_Era" class="extiw" title="w:Common Era">CE</a>)]. (1895, 1 September). <i><a href="https://en.wikipedia.org/wiki/Royal_Thai_Government_Gazette" class="extiw" title="w:Royal Thai Government Gazette">Royal Thai Government Gazette</a></i>. (Volume 12, Part 22). pp. 189–190.