Material from the interaction of the Siam Society and the Royal Asiatic Society. These are:

• Letter from the President, Royal Asiatic Society, to H.H. Prince Dhani Nivat, President, Siam Society, to congratulate the Siam Society on its Jubilee. Typed, dated 18 February 1954.
• "Siam Society - 75 years" - printed pamphlet produced to mark the 75th anniversary of the Siam Society in 1979.
• Letter from D.J. Duncanson, Director, Royal Asiatic Society, to The President, Siam Society, to send the commemorative publication celebrating 150 years of the Royal Asiatic Society. Typed, dated 27 May 1980.

Scale: 1:25,000 and 1:3,000,000
Size: 70x60 cm
Creator: Banthai Amatyakul
Publisher Thai Watana Panich
Place of Publishing: Thailand

Area: The map shows the status of the roads in Thailand, some roads can be used all the year, some are unavailable in some seasons and some will be built in the future. This map is in poor condition in three pieces.

Dr David Richardson undertook a series of missions whilst Assistant Commissioner in the Tenasserim Provinces (including modern-day Thailand and Myanmar). This material includes some of his journal of his mission to Siam, and a report and letters to E.A. Blundell, Commissioner in the Tenasserim Provinces.

Scale: 1:1,000,000 and 1:25000
Size: 50x80 cm
Area: Thailand and Bangkok

These are complimentary maps from a magazine - two sided and covered in plastic.

Size: 40x50 cm
Area: Thailand and Bangkok

Basic black and white map, one side showing the City of Bangkok and the other a route map of Thailand.

Letter from Dr David Richardson to E.A. Blundell, Civil Commissioner in the Tenasserim Provinces, to report his return from the court of Siam and to forward a short abstract of his journey. There follows an account of his journey and of his time at the court of Siam. This seems to be a rough draft with corrections and annotations.

"Journal of a Mission from the Supreme Government of India to the Court of Siam" covering the dates 18 December 1838 - August 16th 1839. The Journal is incomplete. The journal gives accounts of the journey, the places at which Richardson stopped, and of his time in Bangkok. Not every day is represented in this account, and there are edits and annotations on the journal, possibly in a different hand.

One in the series of four maps of Thailand.
Scale: 1:1,000,000
Size: 70x60 cm
Creator: Royal Survey Dept, Bangkok
Publisher: RSD, Bangkok
Place of printing: Bangkok
Area: The map of Bangkok, other provinces in the central part of Thailand and some parts of Burma.

The map is stamped with "The Greater India Research Committee".