Edition Schott, 2165.
Acc. arr. for 2nd piano.
Edition based on ms. copy in the Bachsammlung Manfred Gorke at Eisenach. Although that ms. attributes the work to J.S. Bach, the editor basing his decision on stylistic evidence attributes the work to W.F. Bach.
Probably by Kirnberger: cf. Zeitschrift für Musik, v.90 (1962), p. 891.