traveling patents are nice to have. inside the u.s., it's not really neccesary to use it, as your dues card and a letter of good standing from your lodge should suffice. the traveling patent is ideal for when you are going out of country, also needing to be accompanied by a letter of good standing, but the letter needs to come from your grand lodge, making sure that the letter has been dated close to the time that you are traveling out of country. some GL's offer multiple sizes of the certificate. my GL offers a standard letter size certificate and a larger certificate for framing. sorry, probably more info than was needed, just thought I would throw some info out there for you brothers.