PANAPEX (Pan Asian Philatelic Exhibition)was held at Manila from November 16 to 29, 1952 (it was originally scheduled from Nov. 16 to 22 but got extended due to a reported public demand).
Earlier, on October 10, President Elpidio Quirino signed Proclamation No. 342 "to draw the people's attention to the First Pan Asian Philatelic Exhibition" and to "declare the period from November 16 to 22, 1952, as the First National Philatelic Week in the Philippines".
Sponsors of the exhibit were the Stamp & Philatelic Division of the Bureau of Posts, the Philippine Philatelic Club and the Asociacion Filatelica de Filipinas. A report of the event says 600 frames of local and foreign material were displayed by some 60 exhibitors.
A set of three large stamps (5c, 6c, 30c) was issued portraying Maria Clara.
It must have been an exciting exhibition to see, along with the hundreds who came daily!