IVORY COAST (1966) Hotel Ivoire*. Fountains*. Deluxe sheet. Scott No 245, Yvert No 248.
$10.0
CONGO (1967) Waterfall*. Imperforate pair. Scott No 165, Yvert No 211.
$10.0
CONGO (1967) Waterfall*. Deluxe sheet. Scott No 165, Yvert No 211.
$20.0
JAPAN (1967) Lake Chichibu*. Specimen. Scott No 939, Yvert No 888.
$5.00
TOGO (1968) Flower*. Waves*. Set of 2 imperforate pairs. Hydrological Decade. Scott Nos 640,C90. Yvert Nos 572,PA92.
$20.0
JAPAN (1968) Kiso River*. MIHON (specimen) overprint. Scott No 960.
$5.00
JAPAN (1968) Lake Towado*. Specimen. Scott No 969, Yvert No 919.
$5.00
BELGIUM (1968a) Fountain*. Kursaal spa*. Imperforate, with control number printed on back. Ungummed as issued. Scott No 652, Yvert No 1462.
$15.0
MONACO (1969) Underwater scene*. Trial color proof pair. Scientific exploration of Mediterranean. Scott No 751, Yvert No 805.
$15.0
CAMEROUN (1971) Sanaga River*. Imperforate. Scott No 523, Yvert No 501.
$4.00
AUSTRIA (1973) Emperor's Spring*. Black print. Scott No 957, Yvert No 1258. Centennial of mountain spring water system.
$20.0
JAPAN (1973) Minoo Falls*. Specimen. Scott No 1136, Yvert No 1075.
$10.0
JAPAN (1973) Sandan gorge*. Specimen. Scott No 1145, Yvert No 1087.
$10.0
CHILE (1974) F. Vidal Gormaz*. FDC with cachet. Centenary of Naval Hydrographic Institute. Scott No 457, Yvert No 434.
$3.00
UPPER VOLTA (1975) Ships*. Set of 6 imperforate pairs. Okinawa Oceanographic Expo. Scott Nos 375-8,C223. Yvert Nos 364-8,PA198.
$40.0
$40.0
JAPAN (1975) Okinawan dancer*. Birds in Flight*. 1st Ocean Expo. Set of 3 with MIHON (specimen) overprint. Scott Nos 1216-8, Yvert Nos 1162-4.
$15.0
AUSTRIA (1977) Myra Waterfalls*. Black print. Scott No 975, Yvert No 1381.
$20.0
AUSTRIA (1979) Stream*. Industrial plant*. Black proof, Control and elimination of water pollution. Scott No 1124, Yvert No 1439. Interesting aspect of topic!
$25.0