Shure elvis microphone Fatboy Vintage 55S? 40s?

Description

Vintage Shure Elvis style microphone but it is just a little larger. I believe these are known as fatboys. I measured the resistance of the mic and is measured about 1 K ohm. I then jumpered it to a guitar amp input with clip leeds and it did pass signal but was humming a lot. One of the splines is broken on one end as shown in the photo and the mounting bracket is broken also as seen in another photo. Please feel free to ask any questions prior to purchasing and we will be glad to help you.
*ALL OF MY ITEMS FOR THE MOST PART ARE PRE-OWNED , COLLECTIBLE , ANTIQUE , OR VINTAGE, SO THERE COULD BE SOME LIGHT WEAR, OR NONE AT ALL. MOST VINTAGE GLASS WAS NOT MADE PERFECT, THAT IS PART OF THE CHARM OF IT. THIS COULD INCLUDE LIGHT SCRATCHES, AIR BUBBLES, STRAW MARKS,STRESS LINES/ CRAZING, OR FACTORY IMPERFECTIONS , WHICH IS NORMAL WITH OLD GLASS. SOMETIMES THERE ARE MINI FLEA BITES. I DO MY BEST TO DESCRIBE MY ITEMS, EVEN IF IT HAS A FLAW,OR HAS A CHIP. I HAVE MISSED A FEW, BUT NEVER INTENTIONALLY.  ANY TYPE OF METAL, BRASS ,CAST IRON, ECT WILL RECIEVE A MILD CLEANING, I JUST NEVER WANT TO DESTROY THE PATINA OF A VINTAGE ITEM. I TRY TO DESCRIBE MY ITEMS WELL TO THE BEST OF MY KNOWLEDGE , AND USUALLY SUPPLY AT LEAST 6-12 PICTURES SO YOU CAN SEE ITEM FROM DIFFERENT ANGLES. THE PICTURES ARE ALWAYS OF THE ITEM I AM SELLING. IF YOU HAVE ANY QUESTIONS FEEL FREE TO ASK ME PRIOR TO BIDDING VIA EBAY MESSAGES.
* TRACKING NUMBER, INSURANCE INCLUDED IN SHIPPING COST. NO HANDLING FEE.