Hi folks. I am by no means a vintage guru, but I came across an old lens cap recently that caught my eye. It is an old Aluminum slip-on cap with silvery outer and black inner finishes and with a felt lining around the inside edge. It measures about 48.3mm on the inner diameter so i suspect it is for a 49mm press fit. Ok ... not that interesting. But it is stamped with the word "Beauty" on the front. I'm generally quick to find info on an old gem, but there is nothing on this one. I have sifted through thousands of photos of caps but I have found none that say Beauty and text searches get muddied up with everything beautiful ... results in the millions. Is anyone familiar with this cap and can you tell me what lend it is for? Any help will be greatly appreciated.