I have a subway roll sign that has several seams starting to come loose between station stop panels. In a past discussion, it appeared the TA used a certain tape to keep the panels together. I'm sure this sign is fairly old so am wondering if these panels are coming loose because of age. Did the TA put any sort of oil on the sign panels to keep them from drying out?

Thanks,

Bill

are these it?

CC,

No, it's the cloth roll sign with the handle on the side.