lightsaber.png (Size: 7.14 KB / Downloads: 41)
Don't know if this helps in any way, but this is what I see, if I add info from Brickset and Rebrickable.
15556 and 64567 replaced 23306 at the same time.
64567 have been redesigned at some point and is now more similar to the first version, without a bottom ring.
23306 and 64567 are present in LDD (and at Digitalbricks), but have some small issues.