January 13, 2018. - I have added a page for Pacific Mail Steamship Co. straight line handstamp cancels.
August 17, 2017. - I have added a census page for R15e (2-cent USIR on green paper).
December 3, 2016. - I have added a census page for 1st-3rd issue double impressions.
August 3, 2014. - I added a reference page to Civil War photographer cancels.
July 28, 2014. - I added a blog of selected posts I've made on various forums and mailing lists.