
Siam's pavilion was a copy, at twice the size, of a small royal residence in the Chakri Palace at Bangkok. It had tiered, sharp-peaked roofs with decorated gables, Buddhist angels, serpent ornament running up the roof edges, finials and a royal parasol on top. The walls were translucent glass in square panes fixed with a special lacquer. It was built of Siamese materials in Bangkok, approved by the King, taken apart and shipped on the steamer 'Mongolia', which arrived in mid-March 1915. A. B. Spigno of the Royal Public Works Department supervised its reassembly. Todd thought a passing breeze might lift it and float it back to the Malay sea.
Inside, beneath a portrait of the King, were red-lacquer columns, silver and ivory work, gongs, fans and weapons, rice varieties, silk and ores. The pavilion was dedicated May 6, 1915.
...you felt that some passing breeze might lift it and float it away through the air with all its Buddhist angels and sacred serpents and give it back to the warm Malay sea whence it had come.
Frank Morton Todd, The Story of the Exposition, vol. III (1921), p. 270
At a glance
- Built in Bangkok, shipped knocked down, and re-erected by Siamese workmen.
- Twice the scale of the original royal residence.
- Dedicated May 6, 1915.

Afterward
Offered to the City of San Francisco after the fair; as of 1921 the city had not taken it (Todd V, p. 246). Later fate unverified.
Where it stood
Pavilion of Siam stood at about 37.80321 N, 122.45108 W on today's map. The whole fairground over the city →
Sources
- Frank Morton Todd, The Story of the Exposition, vol. III (1921), ch. IX, p. 64 (dedication May 6)
- Frank Morton Todd, The Story of the Exposition, vol. III (1921), ch. XXXV, pp. 205-206
- Frank Morton Todd, The Story of the Exposition, vol. III (1921), ch. L, pp. 270-272
- Frank Morton Todd, The Story of the Exposition, vol. V (1921), ch. XXXVII, p. 246 (fate)
- Official Guide of the Panama-Pacific International Exposition (1915), p. 49
- Museum of the City of San Francisco, Panama-Pacific International Exposition Map (1915), map label 'Siam' near the Inside Inn