A Siamese government announcement regulating release of lanterns in northern provinces, dated 1 January 1900.
Government of Siam/Thailand
1900-03-17
<a rel="nofollow" class="external text" href="http://www.ratchakitcha.soc.go.th/DATA/PDF/2443/051/737.PDF">Royal Siamese Government Gazette, volume 17, page 737, dated 17 March 1900</a>