For those who are interested in Jewish ephemera, also see the blog Ephemera, collecting Jewish-themed postcards is very popular. A hundred years ago postcard collecting was extremely popular, and Jewish-themed postcards were no exception. The two most common types of postcards are New Year/Shannah Tovah cards, and those with synagogues. A number of years ago the JTS Library had an exhibition of these postcards, with a beautifully illustrated accompanying book. As an outgrowth of my stamp-collecting I have begun to collect postcards, usually able to find many for between $5-$15 on Ebay. There are many rarer cards, usually of Europeans synagogues that are more expensive, but yesterday one was sold on Ebay for an incredible about of money. A postcard of Congregation Beth El of Borough Park (see this NY Times’ article about its construction) circa 1908 sold for $504.95! My guess is that it is an incredibly rare card or that there is some treasure map encrypted in the picture. If anybody is looking for a hobby, collecting postcards is fun, filled with history, and doesn’t take up much room.