Those five- and nine-digit numbers in our mailing addresses seem to be a normal part of life that hardly gets noticed. Known as a ZIP (zone improvement plan) code, the digits can be found on virtually every piece of mail across the country. But more than...

Touro Synagogue's role in U.S. history Last month I showed a couple of Hanukkah covers from my United States Judaica cover collections. Another of my collections is the 1982 Touro Synagogue stamp. Again, I collect first day covers of the U.S. stamp with different...