What is Bhutan KM# 26?

KM# 26: https://en.numista.com/catalogue/pieces30856.html
KM# 28: https://en.numista.com/catalogue/pieces9170.html

KM 38 edition says 1/2 Rupee KM#26 has two versions:
- ND(1928) actually struck in 1951
- ND(1950) actually struck in 1955
(ND(1928) should probably be interpreted as cyclical date 1928 and ND(1950) as cyclical date 1950.)
But the cyclical date description says 1928 isn't used for KM# 26.

KM 42 edition and later only list ND(1928) for KM#26.

All KM editions I have unhelpfully say the weight is 5.72 g with a note that the date varies between 5.78 and 5.90 g. (Yes, there is no overlap between the stated weight and the measured weight.)

KM 38th edition and later have a CD 1928 image for KM#26.

KM 23rd edition and 28th edition has a CD 1950 image for KM#26 and two dates, and KM#28 is the reduced weight version (now 28.2).

The Numista listing says 5.72 g (and also copies the weight range from KM) and has verified dates ND (1951) and ND (1955) as separate lines, but also has "NOTE: Actually Struck In (1951)" in the comments.

If we keep with Krause KM 28.1 and 28.2 it seems like there should be no "ND(1955)" line for KM# 26, and the image for the Numista entry for KM# 26 should be removed since it is showing the CD 1950 date form.

Also all of the dates for several types should be changed from the ND form to "ND (CD19xx) (19xx)".

And shouldn't KM# 28.1 and KM# 28.2 have separate Numista entries since they have different weights?

Nothing admins have to do here, you can submit change requests if needed :-)