This collection of Herbert consists of four parts. The first part is correspondence with several Burmese personalities, a.o. U Ne Win (1910/11-2002) (premier 1958-1960, president 1962-1981). Parts two and three concern U Maung Maung, the ‘Brigadier” (1920-2009) and U Maung Maung (1925-1994), the president for one month. There’s correspondence with both (and in case of the second Maung Maung also with his widow), and there are different typescripts.
Part 4 contains some materials from the 1988 uprising of which we already had a collection present at the Institute (and which also came by the hand of Patricia Herbert) See the illustrations with this article for some examples.
Patricia Herbert: http://hdl.handle.net/10622/ARCH04567
More on 1988: http://hdl.handle.net/10622/ARCH02851
IISH has yet another collection with typoscripts of Maung Maung. This collection is still closed though (http://hdl.handle.net/10622/ARCH02235)
With thanks to Bouwe Hijma on whose presentation during the last 'Friends of the IISH' day this text is based.