This is what it is supposed to look like, PN 52155:
https://www.sharpsewingsupplies.com/sto ... _195K.html
What you got there looks like a needle bar from a 31. Changing out needle bars was not all that uncommon and was often done to accommodate the use of a particular needle. If, for example, you had a whole line of 31 machines and only a handful of 95s, you might change the needle bars out so they could use the same needles. That made your life easier, as you could just order one style of the needle. As well, if you were a domestic user and messed up your needle bar and took it in for repair, the repairman might put in whatever needle bar he had laying around. He'd figure out what needle he could use and time the machine to it. Then he'd tell you what needles to buy from then on.
You can buy a needle clamp for a 31 (understand that I'm guessing at the 31, but it looks right) and get 2 for $10: ht tps://
www.amazon.com/NEEDLE-CLAMP-CONSEW-SING ... B077F2FX4W or you can buy a 52155 for $20. If you go the model 31 route you'll also need to figure out what needle you're supposed to use with it, as it may not use the same needle that it would with the 52155.
If you go with the 52155 you may have to re-time for the needle. You won't know until you can compare the two-needle bars.
Dadgum it, this is exciting vintage sewing machine science.