The Rensselaer Polytechnic Institute Amateur Radio Club records (2010-14) collections primarily consists of QSL cards mailed to W2SZ by ham radio operators from around the world.  Each card documents the sender's call letters along with the date, time, and location where a W2SZ message was received.  Many of the cards also contain a graphic image representing the institution or area in which the message was received. The collection also contains two record books from the 1950s to the 1960s, a 1925 relay station certificate, and miscellaneous items.