No, they are not originals. Originals are all Stainless Steel. Researching the mike over the years I have seen no mention of an alloy thimble at any time. This is why I said I would be a little skeptical of them. I have turned this type down before. At no time do I say they are not the real deal, I have just never heard of it being done. I asked the seller to give me the serial numbers, lets see what he has to say. I have all the serial numbers in a log book.
"Billy G"