Postmark Collectors Club
@postmarkcc.bsky.social
PMCC a national organization dedicated to collecting and preserving postal history. Museum in Bellevue, Ohio. Monthly Bulletin. Annual Convention in the Fall. www.postmarks.org
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this seems specifically designed to break mail-in voting (where deadlines are defined by postmark)
As of 12/24/25, USPS changed policy on when they postmark mail. Mail dropped off is no longer guaranteed a same-day postmark. Tax returns & other time-sensitive items are now stamped when they reach a regional processing center, which may be days later. Plan deadlines accordingly to avoid penalties.
USPS Announces Changes to the Postmark Date System
The United States Postal Service (USPS) has adopted a final rule (FR Doc.
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December 29, 2025 at 9:51 PM
this seems specifically designed to break mail-in voting (where deadlines are defined by postmark)
Postmark cancelling the 22-cent, 1986 #WoodrowWilson Presidential Stamp. Cancel is on December 28 from #Staunton, #Virginia the birth date and birth place of President Wilson #postmarks
December 29, 2025 at 10:46 PM
Postmark cancelling the 22-cent, 1986 #WoodrowWilson Presidential Stamp. Cancel is on December 28 from #Staunton, #Virginia the birth date and birth place of President Wilson #postmarks
Hand cancelled postmark from #NorthPlatte #Nebraska on January 9, 1952. Killer is an oval of stripes with number "1". #postmarks
December 28, 2025 at 8:25 PM
Hand cancelled postmark from #NorthPlatte #Nebraska on January 9, 1952. Killer is an oval of stripes with number "1". #postmarks
May 12, 2024 at 6:24 PM
Detroit Michigan cancel from Oct. 16, 1965 from the Wayne Stamp Society 40th annual stamp show. Canel includes the Detroit River PO Station mark. #postmarks #detroit
March 29, 2024 at 6:50 PM
Detroit Michigan cancel from Oct. 16, 1965 from the Wayne Stamp Society 40th annual stamp show. Canel includes the Detroit River PO Station mark. #postmarks #detroit
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Remembering my PhD advisor Jim Cushing who took his life 22 yrs ago today. He was a brilliant mind, interdisciplinary community builder & generous soul. Reach out to those around you who may be struggling & help them find resources needed to weather storm.
www.nimh.nih.gov/health/topic... ⚛️ #philsci
www.nimh.nih.gov/health/topic... ⚛️ #philsci
March 29, 2024 at 1:56 PM
Remembering my PhD advisor Jim Cushing who took his life 22 yrs ago today. He was a brilliant mind, interdisciplinary community builder & generous soul. Reach out to those around you who may be struggling & help them find resources needed to weather storm.
www.nimh.nih.gov/health/topic... ⚛️ #philsci
www.nimh.nih.gov/health/topic... ⚛️ #philsci
USS Arizona Navy Ship cancel from. August 16, 1932 on a 3-cent 1932 LA Olympics Stamp. #postmarks #USSArizona
March 28, 2024 at 2:07 AM
USS Arizona Navy Ship cancel from. August 16, 1932 on a 3-cent 1932 LA Olympics Stamp. #postmarks #USSArizona
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The U.S. Postal Service marked Manatee Appreciation Day by unveiling its new Save Manatees #stamp in Silver Springs, FL, near a warm spring frequently visited by these marine mammals.
March 27, 2024 at 10:33 PM
The U.S. Postal Service marked Manatee Appreciation Day by unveiling its new Save Manatees #stamp in Silver Springs, FL, near a warm spring frequently visited by these marine mammals.
Colorado Spring, CO hand cancel postmark from Oct. 12, 1908. The oval killer shows #2. #coloradosprings #postmark #handcancel
March 5, 2024 at 3:47 AM
Colorado Spring, CO hand cancel postmark from Oct. 12, 1908. The oval killer shows #2. #coloradosprings #postmark #handcancel
an April 5, 2020 commemorative postmark from Madison, Wisconsin 53719 cancelling a Gwen Ifill (NPR news commentator) stamp. This postmark is honoring the anniversary of women's right to vote. #postmarks #GwenIfill #MadisonWI #19thAmendment
March 3, 2024 at 12:22 AM
an April 5, 2020 commemorative postmark from Madison, Wisconsin 53719 cancelling a Gwen Ifill (NPR news commentator) stamp. This postmark is honoring the anniversary of women's right to vote. #postmarks #GwenIfill #MadisonWI #19thAmendment