Letter about participating in the 29th International Congress of Orientalists (Paris, 1973) © Ambassador Armando Martins Janeira collection, box 39, I-3, C/003, 1951-1985, file 032. The letter is written in the two official languages of the event (English and French) and is signed by both the vice-president Jean Filliozat (1906-1981) and the secretary general Yves Hervouet (1921-1999).
Source: Municipal Historical Archive of Cascais

Second newsletter (in English) of the 29th International Congress of Orientalists (Paris, 1973) © Ambassador Armando Martins Janeira collection, box 39, I-3, C/003, 1951-1985, file 032.
Source: Municipal Historical Archive of Cascais

Second newsletter (in French) of the 29th International Congress of Orientalists (Paris, 1973) © Ambassador Armando Martins Janeira collection, box 39, I-3, C/003, 1951-1985, file 032.
Source: Municipal Historical Archive of Cascais

Registration form for the 29th International Congress of Orientalists (Paris, 1973) © Ambassador Armando Martins Janeira collection, box 39, I-3, C/003, 1951-1985, file 032.
Source: Municipal Historical Archive of Cascais

Commemorative centennial medal of the International Congresses of Orientalists (1873-1973) as well as of the 150th anniversary of the foundation of the Société Asiatique de Paris. The word “human” is engraved in different Oriental languages © Société Asiatique.
Source: http://www.aibl.fr/societe-asiatique/histoire/deux-siecles-d-orientalisme/

XXVII International Congress of Orientalists, August 13-19, 1967 (Ann Arbor) © University of Michigan Library Digital Collections (HS9028).
Source: http://quod.lib.umich.edu/b/bhl/x-hs9028/hs9028

Opening session of the 26th International Congress of Orientalists on January 4, 1964 (New Delhi).
Source: https://archive.org/stream/in.ernet.dli.2015.170726/ 2015.170726. Proceedings-Of-The-Twenty-Sixth-International-Congress-Of-Orientalists-Volume-I#page/n75

The presidential handover from the 25th to the 26th International Congress of Orientalists (New Delhi, 1964). On the left, B.G. Gafurov (1908-1977), who presided over the Moscow session in 1960; on the right, Humayun Kabir (1906-1969), the president of the New Delhi session. In: Proceedings of the Twenty Sixth International Congress of Orientalists, New Delhi (4-10th January 1964), vol. 1 (1966).
Source: https://archive.org/stream/in.ernet.dli.2015.170726/2015.170726. Proceedings-Of-The-Twenty-Sixth-International-Congress-Of-Orientalists-Volume-I#page/n77

Commemorative postage stamp of the 26th International Congress of Orientalists (New Delhi, 1964).
Source: http://www.istampgallery.com/xxvi-international-congress-of-orientalists/

Commemorative postcard of the opening session of the 26th International Congress of Orientalists on January 4, 1964 (New Delhi).
Source: Extracted from the eBay website in March 2017

Information sheet for the commemorative postage stamp on the 26th International Congress of Orientalists (New Delhi, 1964).
Source: http://www.istampgallery.com/xxvi-international-congress-of-orientalists/

Airmail envelope of the 25th International Congress of Orientalists (Moscow, 1960), where Mário Pinto de Andrade (1928-1990) spoke as delegate for Conakry.
Source: Extracted from the website ретрокниги.рф in November 2018

Group photograph of some participants in the 24th International Congress of Orientalists (Munich, 1957) © M. Tayyib Gökbilgin.
Source: http://tayyibgokbilgin.info/galeri/

Most probably the opening (or closing) session of the 23rd International Congress of Orientalists (Cambridge, 1954) © M. Tayyib Gökbilgin.
Source: http://tayyibgokbilgin.info/galeri/

Medal of the 23rd International Congress of Orientalists (Cambridge, 1954) © M. Tayyib Gökbilgin.
Source: http://tayyibgokbilgin.info/kongre-tebligleri/23rd-intern-congress-of-orientalists-cambridge/

Group photograph of some participants in the 23rd International Congress of Orientalists (Cambridge, 1954) by P.R.L. Owens © University of Chicago Library, Special Collections Research Centre.
Source: http://photoarchive.lib.uchicago.edu/db.xqy?show=browse8.xml|1200

Group photograph of some participants in the 23rd International Congress of Orientalists (Cambridge, 1954) © M. Tayyib Gökbilgin.
Source: http://tayyibgokbilgin.info/galeri/

21st International Congress of Orientalists (Paris, 1948) © Société Asiatique.
Source: http://www.aibl.fr/societe-asiatique/seances-colloques-conferences/

Sample of membership card for the 21st International Congress of Orientalists (Paris, 1948). This card belongs to Gilles Quispel (1916-2006), Dutch theologian and historian © Claremont Graduate University, Institute for Antiquity and Christianity, School of Religion.
Source: http://ccdl.libraries.claremont.edu/cdm/ref/collection/nha/id/1578

Jacques Bacot (1877-1965), seated at the table on the left-hand side of the speaker, presiding over the 21st International Congress of Orientalists (Paris, 1948) © Société Asiatique.
Source: http://www.aibl.fr/societe-asiatique/histoire/liste-des-presidents/