This variant of the Sun once again has a sign on top again (cfr Aa1-26) + an arm with an open hand outwards oriented, meaning empty (zero).

A similar type of arm and hand we also found in a Keiti calendar, in what perhaps is the first half of the year.

It is presumably the same arm and hand as in Kb4-13. No longer do we see a sharply bent arm at the elbow, but an arm which is in a more normal and human position.