New entry Apr. 2026

Stamps printed in excessive quantities

According to an article in the Philatelic Webmaster Organization, some companies that have printed stamps on behalf of poor countries (especially in Africa) are printed in excessive quantities aimed at collecting.

Stamps are only apparently approved by local postal administrations,

The article mentions in particular

many stamps and leaflets related to minerals, from countries such as:

Chad, Comoros, Mali, Niger, Congo ,

Burundi, Guinea Rep., Guiné Bissau Rep.,

Solomon Is., S.Tome & Prince, Togolaise Rep.....

*****

Black number = Scott catalog

Blue or red number = Yvert et Tellier catalog

****

Scientists the field of mineralogy

Marie Curie

NEW

Sierra Leone

2024 Y&T - n.c.

Marie Curie

NEW

Sierra Leone

2024 Y&T - n.c.

Pierre

and

Marie Curie

NEW

Liberia

2024 Y&T - n.c.

Pierre

and

Marie Curie

NEW

Liberia

2024 Y&T - n.c.

Marie Curie

NEW

Centrfricaine Rep.

2024 Y&T - n.c.

Gems and Jewels

Image	Country	Year	Subject	Yvert	Set
Acq	Oman	2025	Various gems	BF	6 val

Meteorites

Image	Country	Year	Subject	Yvert	Set

Minerals

Belgie - Belgique

Fluorite

NEW

Belgie - Belgique

2024- n-c.

Y&T - 5244-5245

Brasil

Opal + Jewels

NEED

Brasil

2011- SP 223.

Y&T - n.c.

Centrafricaine Rep.

Euclase

NEW

Centrafricaine Rep.

2023 - n.c..

Y&T - 14422

Arsenopyrite

5 px

NEW

Centrafricaine Rep.

2023 - n.c..

Y&T - 14423

Brasilianite

NEW

Centrafricaine Rep.

2023 - n.c..

Y&T - 14424

Spessartine garnet

NEW

Centrafricaine Rep.

2023 - n.c..

Y&T -14425

Euclase Arsenopyrite Brasilianite Spessartine garnet

NEW

Centrafricaine Rep.

2023 - n.c..

Y&T -10422 - 10425

Djibouti Republique

Celestine + Min

NEW

Djibouti Republique

2022- n-c.

Y&T - BF 770

Anglesite

Chiasolite Demantoide garnet

NEW

Djibouti Republique

2022- n-c.

Y&T - BF 771

Andalusite Uvarovite Spodumene

NEW

Djibouti Republique

2022 - n.c.

Y&T - 3842-3848

Auricalcite

Tourmaline

Orthoclase

NEW

Djibouti Republique

2022 - n.c.

Y&T - BF 997

Calcite

Axinite

NEW

Djibouti Republique

2022 - n.c.

Y&T - BF 998

Labradorite

Anorthite - Epidote Tourmaline

Minerals of the world

NEW

Djibouti Republique

2022 - n.c.

Y&T - 4344-4346

Volcanoes

Peridot

Pezzottaite

NEW

Djibouti Republique

2023 - BF n.c.

Y&T - BF 1435

Volcanoes

Brucite

NEW

Djibouti Republique

2023 - BF n.c.

Y&T - 6011-6016

Mandela

Ilmenonorutilo Normandite Tanzanite

NEW

Djibouti Republique

2023 - BF n.c.

Y&T - n.c.

Guinée

Baryte

BaSO₄

NEW

Guinea

2006 - n.c.

Y&T - BF 333

Ilmenite

NEW

Guinea

2018 - n.c.

Y&T - BF2271

Chondrodite

Uvarovite

Pyrite

NEW

Guinea

2019 - n.c.

Y&T - BF 2433

Sphalerite Belomorite

Chrysberyl

Edenite

NEW

Guinea

2019 - n.c.

Y&T - 1001-1004

Jasper Dioptase

NEW

Guinea

2020 - n.c.

Y&T BF 2595

Pyrite

Amazonite

Carnelian

Tourmaline

NEW

Guinée

2020 - n.c.

Y&T - BF 2898

Azurite

Beryl

Magnesite

Cuprite

NEW

Guinée

2020 - n.c.

Y&T - 10263-10266

Chalcopyrite

Malachite

Laterite rock

NEW

Guinée

2020 - n.c.

Y&T - 10742-10743

Peridot

Amethist

NEW

Guinée

2021 - n.c.

Y&T - BF 2701

Pietersite Malachite Jasper Rhodolite

NEW

Guinée

2021 - n.c.

Y&T - 11060-11063

Minerals of the world

Langban, Sweden

NEW

Guinée

2021 - n.c.

Y&T - 11357-11364

Raspite Kottigite Shattuckite Pollucite

NEW

Guinée

2022 - BF

Y&T - BF 2921

Raspite

Senarmontite Inesite Tarbuttite Polibasite

NEW

Guinée

2022 - BF

Y&T - 11963-11966

Raspite

Topaz

Quartz

Spangolite

NEW

Guinée

2023 - BF

Y&T - BF 3029

Raspite

Beryl

Azurite

Malachite

Realgar

Xenotime

NEW

Guinée

2023 - Multi

Y&T -12397-12400

Carminite Raspite Clinozoisite

NEW

Guinée

2024 - n.c.

Y&T - n.c.

Raspite

Sperrylite Plattnerite Clinozoisite 

NEW

Guinée

2024 - n.c.

Y&T - n.c.

Myargirite Ilvaite

Nepheline

Polybasite

Nepheline

Polybasite

NEW

Guinée

2025 - n.c.

Y&T - n.c.

Carminite Polybasite Orthoclase

Ilvaite

NEW

Guinée

2025 - n.c.

Y&T - n.c.

Twinned minerals

NEW

Guinée

2025 - n.c.

Y&T - n.c.

Guiné-Bissau

Agate + Cave

NEW

Guiné Bissau

2020 - n.c.

Y&T - BF 1644

Actinolite

Cinnabar

Tourmaline

Egirine

NEW

Guiné Bissau

2020 - n.c.

Y&T - 8592-8595

Rodalquilar

Mineral deposit

NEED

Guiné Bissau

2020 - n.c.

Y&T - 8739-8746

Bauxite

Quartz

NEW

Guiné Bissau

2021 - n.c.

Y&T - 9406-9408

Stilbite

NEW

Guiné Bissau

2021 - n.c.

Y&T - BF 1747

Mesolite

Antimonite

NEW

Guiné Bissau

2021 - n.c.

Y&T - BF 1949

Zincite

Zincite

Anapaite

Crisotilo Staurolite Silvite

NEW

Guiné Bissau

2021 - n.c.

Y&T - 9683-9685

Xenotimo Karnotoite Arsenopyrite

NEW

Guiné Bissau

2023 - n.c.

Y&T - BF n.c.

Lantinite

Tremolite Santabarbarite

NEW

Guiné Bissau

2023 - n.c.

Y&T - Multi n.c.

Mesolite

Penfeldite

Catapleite

NEW

Guiné Bissau

2023 - n.c.

Y&T - n.c.

Penfeldite Carminite Helvine Sanidine Plattnerite

NEW

Guiné Bissau

2023 - n.c.

Y&T -

Aquamarine Dioptase

NEW

Guiné Bissau

2023 - n.c.

Y&T - n.c.

Mandela

Sugilite

Tinguaite

Migmatite rock

NEW

Guiné Bissau

2023 - n.c.

Y&T - n.c.

Mandela

Calcopirite

Labradorite

Wolframite

NEW

Guiné Bissau

2023 - n.c.

Y&T - n.c.

Niger

Lindgrenite Struvite

Turquoise

Azurite Amethyste Malachite

NEW

Niger

2021 - n.c.

Y&T - 5978-5981

Lindgrenit

Crocoite

Tourmaline

NEW

Niger

2021- n.c.

Y&T - BF 1200

Quartz

Topaz Aragonite

Quintinite

NEW

Niger 2023 - n.c.

Y&T - BF 1881

Alabandite Noseana

Hopeite Hausmannite

NEW

Niger

2023 - n.c.

Y&T - 8570-8573

Lindgrenite Struvite

Jalpaite Harmotomo

NEW

Niger

2023- n.c.

Y&T - 9233-9236

Poudretteite Inyoite

Witlockite

NEW

Niger

2023- n.c.

Y&T - BF 1992

Russia

2020- n.c.

Y&T - 8130-8133

2020- n.c.

Y&T - 8131

2020- n.c.

Y&T - 8132

2020- n.c.

Y&T - 8133

Jewels of Gokran

Diamond

Jewels of Gokran

Corundum - Ruby

Al₂O₃

Jewels of Gokran

Corundum - Ruby

Al₂O₃

S.Tomé & Principe

Red Beryl

Dumortierite

NEW

S.Tomé & Principe

2019 - n.c.

Y&T - BF 1290

Aquamarine

Uvarovite Siderite

Pyrite

Ruby

NEW

S.Tomé & Principe

2019 - n.c.

Y&T - 6795-6798

Quartz Amethyst

NEW

S.Tomé & Principe

2020 - n.c.

Y&T - BF 1405

Pyrite

Agate

NEW

S.Tomé & Principe

2020 - n.c.

Y&T - BF 1462

Pirrotite

Quartz Muscovite

NEW

S.Tomé & Principe

2020 - n.c.

Y&T - 7551-7554

Lazurite

NEED

NOT AVAILABLE

S.Tomé & Principe

2021- n.c.

Y&T - BF 1532

NOT AVAILABLE

Autunite

Adamite

Bismutinite

Quartz

NEW

S.Tomé & Principe

2021 - n.c.

Y&T - 7837-7840

Sierra Leone

Euclase Demantoide

Heliodor

Red Beryl

NEW

Sierra Leone

2018 - n.c.

Y&T - BF

Euclase Demantoide

Heliodor

Red Beryl

NEW

Sierra Leone

2018 - n.c.

Y&T - BF

Rutile

Gold

Bauxite

NEW

Sierra Leone

2022 - n.c.

Y&T -BF 2440

Celestine

Cassiterite

NEED

Sierra Leone

2022 - n.c.

Y&T -BF 2087

Spessartine

Benitoite Euclase

NEED

Sierra Leone

2022 - n.c.

Y&T -BF 2088

Kyanite

Benitoite Cassiterite

NEED

Sierra Leone

2022 - n.c.

Y&T - 10597-10600

Beryl

NEW

Sierra Leone

2022- n.c.

Y&T -BF 2235

Beryl

NEW

Sierra Leone

2022 - Multi n.c.

Y&T - 10961-10965

Chromite - Gold

Miners

and

Diamond

5 px

NEW

Sierra Leone

2022 - n.c.

Y&T - BF 2441

Chromite - Gold

Chromite - Gold Diamond

5 px

NEW

Sierra Leone

2022 - n.c.

Y&T - 11750-11751

Sperrylite

Tiptopite

Xenotime-(Y)

Schorlomite

NEW

Sierra Leone

2023 - n.c.

Y&T - 13105-13108

Gold from U.S.A.

NEW

Sierra Leone

2023 - n.c.

Y&T - 14205-14212

Mandela

Azurite

Vesuvianite

Bauxite rock

NEW

Sierra Leone

2023 - n.c.

Y&T -BF n.c.

Hausmanite

Mesolite

Lindgrenite

NEW

Sierra Leone

2025 - n.c.

Y&T - n.c.

Poudrettite

Shattuckite

Sapphirine

NEW

Sierra Leone

2025 - n.c.

Y&T - n.c.

Terres Australes Antarctique Francaises - TAAF

Forsterite

NEW

TAAF

2026 - n.c.

Y&T - n.c.

Tchad

Tourquoise

Lazurite

NEW

Tchad

2021 - n.c.

Y&T - BF 461

Sodalite Lizardite Jasper

Fossil

NEW

Tchad

2021 - n.c.

Y&T - 3288-3291

Platnerite

Wardite

Marialite

Lindgrenite

NEW

Tchad

2022 - n.c.

Y&T - 4228-4231

Mandela

Cuprite Bornite Olivine

NEW

Tchad

2024 - n.c.

Y&T - n.c.

Togo

Mandela

Amethyst

Rhodolite

Dacite Rock

NEW

Togo 2023 - n.c.

Y&T - n.c.

Variscite Vanadinite Celestine

Rhodocrosite

Tanzanite

NEW

Togo 2023 - n.c.

Y&T - BF 2574

Crysocolla Aragonite Rodusite

Lizardite Annabergite

NEW

Togo 2023 - n.c.

Y&T - 10364-10366

Crysocolla

Agata

Pyrite

Diopside Calcite Bauxite

Aragonite Rodusite

NEW

Togo 2023 - n.c.

Y&T - 10914-10918

Minerals in Portugal

NEW

Togo

2025- n.c.

Y&T - Multi n.c.

Baryte

various localities

NEW

Togo

2025- n.c.

Y&T - Multi n.c.

FDC and Postcards

Australia

FDC

05-10

1996

NEW

Terre Australes France

FDC

01-01

2010

NEW

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2026 - Property of Odino Grubessi & Mario Ramus