The whole Sonata for Keyboard and Violin composed by W.A. Mozart in 1763 is denoted as K 6. So this menuet here is only a piano arrangement of a part of Sonata K 6.
It is believed that the sonata was written down for the 6 year old boy by his father Leopold. So it is preserved in Leopold's handwriting. The piano arrangement of the meunet was inscribed in Nanner's Notebook by Leopold in Brussels in 1763.

ABRSM Grade 1 (Associated Board of the Royal Schools of Music, 2021-2022, Grades 1-8)
AMEB Grade 1 (Australian Music Examinations Board, Grade 1-8)
RCM Grade 2 (Royal Conservatory of Music, 2022, Grade 1-10)
RIAM Grade 1 (Royal Irish Academy of Music, 1-8)