Thanks so much for the info! Are the tins fairly rare? The decoration on mine isn't in great shape, but it opens and closes fine and still has a blade and blade holder inside.
I usually clean up old razors with soap and hot water. Would that be alright on a razor this old?
Try scrubbing bubbles or Kaboom and a stiff toothbrush, watch the blade holders on the top is all. You can also use silver dip. The yellowing is plate loss and that won't come back.
Are these razors silver plated? I'm not famililar with silver dip...