I suspect the silver Mappin and Webb version of the Victory Star was probably made shortly after the Victory and the Emperor's return to Addis Ababa on May 5th, 1941, otherwise they wouldn't have known that the victory was secure and the date.
Owain, I'd love the Best Cow medal if you're not married to it, knowing you prefer military awards.
Chris, I offer most of the medals you lost, but of course not at the bargain prices they were available for in Ethiopia back in the day. I have never paid those low prices for any Imperial Ethiopian medals, and as I support my archive with sales, I know you wouldn't want me to take a loss. Of course they do show up on ebay and at other real auction houses somewhat regularly.
I've never seen a chocolate bronze version of the Victory Star but do have one of the uniface small versions in what appears to be copper.
As for palm leaf attachments, it's quite common to see sellers in Ethiopia attach them to ANY medal to "add value". This looks really strange when applied to something they don't belong on such as the Eritrea Reunion medals. One good clue about them is to study each palm with a GOOD magnifying glass, as each palm has an Ethiopian date on them. Every medal with multiple palms should have DIFFERENT dates on them to be legitimate and original, such as 1928, 1929, 1930 (in Amharic, Ethiopian Era) to represent 1936, 1937, 1938 Julian calendar.
It's a pleasure to meet and hopefully serve you all.
Jim Marshall