The Precancel Stamp Society
It goes on to say, "The Precancel Stamp Society, Inc. is the outgrowth of two earlier organizations of collectors of precanceled stamps. The International Precancel Club was organized in 1910. The IPC held several conventions in conjunction with other stamp gatherings. By 1921 it had 111 members, but was relatively inactive. At about this time, a rival precancel organization was formed under the name: Precancel Club of America. This group had an initial rapid growth and changed its name to The Precancel Stamp Society at what is now considered to be the first PSS convention in Denver in 1922."
Today the Society offers free downloadable precancel albums, a sample copy of their periodical, in-depth, articles about precancels and information on precancel styles.
To visit The Precancel Stamp Society website, click here.