UNESCO Campaign - Pakistan

First Day Cover issued in Lahore on 30 March 1964
Stamps show Philae and Abu Simbel temples, SG 211-2

Nubian Monuments - Guinea

Republic of Guinea, 1997,
Abu Simbel Temple

UNESCO Campaign - Monaco

First Day Cover, 03 June 1961, Monaco

Maximum Card

Nubian Monuments - Sierra Leone

Stamp issued in 1996 by Sierra Leone to commemorate the 50th anniversary of the UNESCO.

The title says "Monument of Nubia at Abu Simbel (Egypt)" but strangely shows the entrance of the temple of Philae as can be seen from the picture below!

Is this a fake? Unfortunately, I do not know anything about this stamp so if you have any information about it, do drop a comment.

UNESCO Campaign - Morocco FDC

Colossal Statue of Ramses II at Abu Simbel

First Day Cover issued in Casablanca, Morocco
on 03 October 1966
to commemorate the 20-year anniversary of the creation of the UNESCO

UNESCO Campaign - Chad FDC

UNESCO Campaign to Save the Monuments of Nubia,
Ramses II on his war chariot, painting from Abu Simbel temple

First Day Cover, Fort-Lamy, Chad
09 March 1964

UNESCO Campaign - Egypt FDC

Campaign to Save the Monuments of Nubia

The Coronation of Queen Nefertari, from the small temple of Abu Simbel

First Day Cover, Cairo, Egypt
31 October 1962

UNESCO Campaign - Egypt FDC

Campaign to Save the Monuments of Nubia

The Rock Temples of Abu Simbel
First Day Cover, Cairo, Egypt

28 April 1966

Nubian Monuments - France, Document Ceres

Ramses II exposition at the Grand Palais in Paris from 15 Mai to 17 October 1976.

UNESCO Campaign - France FDC

First day cover issued in Paris on 05 December 1987

UNESCO Campaign - Korea FDC

First day cover issued on 01 October 1963

Nubian Monuments - Yemen FDC

First day cover issued in Aden on 01 February 1971

UNESCO Campaign - Senegal FDC

First day cover issued in Dakar on 07 March 1964

UNESCO Campaign - Algeria FDC

First day cover issued in Algiers on 28 June 1964

Queen Nefertiti - Germany (Berlin) FDC

Queen Nefertiti FDC issued in Bonn, 02 August 1993

UNESCO Campaign - Mauritania FDC

First day cover, issued in Nouakchott, on 08 March 1964, with stamps SG 188-90.

Queen Nefertiti - Egypt FDC

First Day Cover, 22 January 2004, Cairo

The illustration shows a detail of Tutankhamun's throne depicting the king with his wife, Ankhesenamun (or Ankhesenpaaten), daughter of Queen Nefertiti and King Akhenaten.

UNESCO/Nubian Monuments - United Nations New York

United Nations, 2005

UNESCO/Nubian Monuments - United Nations Vienna

United Nations Vienna, 2005

UNESCO Campaign - Sharjah

Sharjah, 1965, SG 162-5

Ramses II mural, Abu Simbel