ICCA Auction results

The April ICCA auction ended a few weeks ago and while I didn't have anything listed for sale, I did end up purchasing this lovely pair of 2 pillar corkscrews. The one on the left has an interesting inscription on the handle. "Keep to Dollis". The definition of Dollis is "Also called: dolly bird, dollybird old-fashioned, slang, mainly British
an attractive and fashionable girl, esp one who is considered to be unintelligent." Could this have been a bachelor party gift? Would the fiancee not have been insulted? If you have any idea what the meaning could have been, leave a comment.