This definition appears somewhat frequently
See other definitions of PAC
Samples in periodicals archive:
The National Philatelic Museum of India was inaugurated on 6 July 1968 in New Delhi. It had its beginning at a meeting of the Philatelic Advisory Committee on 18 September 1962. Besides the large collection of India Postage stamps designed, printed and issued, it has a large collection of Indian states, both confederate and feudatory, early essays, proofs and colour trials, a collection of Indian stamps "used abroad" and as well as early Indian postcards, postal stationery and thematic collections.