What is this please?

I work for my local Hospice selling on ebay and have no idea what this is for. I’ve searched online and can’t find anything like it. Any help would be great. Thanks.2024-01-04T00:00:00Z

I believe “it” was made by William Comyns & Sons, London 1899 but I have no idea what “it” is!


Thanks. The silver crescent is now live on eBay auction with the info you gave me.