Examples of petro-stamps overprinted for official governmental use:
A "service" overprint for governmental use
of a Bangladeshi gas field stamp.
Canada's 1950 Leduc oil field stamp was overprinted twice for official
use —
with "O.H.M.S." (On His Majesty's Service) and "G"
(Government).
A Tongan stamp overprinted "official airmail"
for goverment use. The surcharged stamp
is also overprinted with a small derrick and
text noting a "1969 oil search".
An Argentinian "official service" overprint for general governmental
use
and two overprints for specific Argentinian ministries (the Ministry
of War
and Ministry of Public Works). All are on stamps depicting the coastal
Comodoro Rivadavia oil field.
Three similar Argentinian stamps overprinted for official
use in blue, black, and abbreviated black versions.
Two variations of official overprints on Colombia's first petrostamp.
Stamps pin perforated vertically or horizontally (rather than overprinted)
with
"G.N." for official use. The G.N. stands for "Gobierno Nacional"
and
the stamps depict a large oil field in Lake Maracaibo.
Iraq's first petrostamps, depicting the Baba-Gugur derrick (the
discovery well for the Kirkuk oil field), are shown here with
"On state service" overprints in English and Arabic for
governmental use.
© Peter A. Scholle, 2000
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