https://edsitement.neh.gov/this-day/pennsylvania-packet-and-daily-advertiser-first-us-daily-newspaper-published
usps
The 8-cent Posting Broadside commemorative stamp went on sale at Atlantic City, New Jersey, on 13 April 1973. NEH.
The 8-cent Posting Broadside commemorative stamp went on sale at Atlantic City, New Jersey, on 13 April 1973. NEH.
https://edsitement.neh.gov/this-day/pennsylvania-packet-and-daily-advertiser-first-us-daily-newspaper-published