I need to make a small correction. My Special Perfect tenor, serial 6074, has the older style touches for the octave key touch: a pearl button for the thumbrest and a pearl button for the octave key touch. On the other hand, my Revere tenor, with only a slightly higher serial number (6414) has the same octave key touch shown in mistermeshmash's post #15. I guess they made a change along the way. My Revere should have been stenciled by Beaugnier in '57-'58.