CuriousChip

Newfoundland Royal Naval Reserve stamp

Airy’s Transit Telescope Greenwich UK postage stamp

Greenwich Meridian UK postage stamp (Greenwich Park)

Greenwich Meridian UK postage stamp (map)

Greenwich Meridian UK postage stamp (earth)

Harrison’s Timekeeper UK stamp

Armagh Observatory UK stamp

Kingfisher UK stamp

Red vintage airmail stamp

Equatorial Guinea marmot stamp

Romanian tuxedo cat stamp

Japanese postage stamp—Mount Fuji in springtime

Norwegian ladybug stamp

Isle of Man cat stamp

Polish black cat stamp