Cancellations stamps

BCCC
Bullseye Cancel Collectors' Club is an organization with a particular interest in cancellations stamps that are perfectly centered, or bullseye cancellations.
Bullseye Cancel Collectors' Club is an organization with a particular interest in cancellations stamps that are perfectly centered, or bullseye cancellations.

Paquebot Cancellation
An article about maritime topics on stamps, specifically paquebot cancellation.
An article about maritime topics on stamps, specifically paquebot cancellation.

The International Machine Cancel Society
An organization that studies automated philately cancellations stamps done with machines.
An organization that studies automated philately cancellations stamps done with machines.

US Fancy Cancel Stamps
Fancy cancels include any stamps or covers marked with an interesting cancellation design to indicate used postage.
Fancy cancels include any stamps or covers marked with an interesting cancellation design to indicate used postage.