I can tell you for a fact that the badge shown in that auction is a "RE-MAKE" ie cast/copied/moulded/re-made by the seller!
I have had ALOT of original Meyers Manx badges through my hands overs the last few years both metal & plastic - I had a REAL trademarked badge on my manx, and I can tell you for a FACT that is was different to the one in that auction,
The real TM'd badges have "Goldish" colour on the raised areas - even if the badges have been stored for years in a box (like a lot of the badges I had were!) at least SOME of this colouring survives

You can also see where he has cut off/shortened the mounting pins after moulding - The REAL badges have a "rounded off" end to the pins, there is also one more giveaway but I am keeping that to myself

I have seen the metal type badges go for BIG money (max $500/600!) but the platic type never go for more than $250.00 so where the seller even gets this price from is a mystry
P.S if anyone wants one of these badges I can supply one at approx 1/10th the auction price