Can you identiify this set of risers?

[Tin Man]

UFO riser C .jpg
UFO riser B .jpg
UFO riser C .jpg

this is two piece part the top clamps to the bottom and yeah, I know the Allen heads aren't original. Someone used to keep the two halves together

[Rubone]

Custom fabrication built on an old one piece K/Sportster/ '60 up Big Twin lower section.

[Tin Man]

Not that, it's is two distinct casting no welding or fabricating done to it

[Rubone]

The weld is obvious in your pictures, and not a very good weld at that.