Catalogued in RISM as “Concertos; Manuscript copy; A-Wn E. M. 156a” by Anonymus. RISM 600236792
Same music
Movements I and III match the Alberti concerto RISM 1001244317 note for note.
Attributed copies compared (2 of 3 encoded incipits match):
1.1.1 Allegro spiritoso · vl · 14 of 14 pitches agree
'''4C''B{8'''C''GAE}/{FDG'G}{''C'GAE}/4'''C''B8{'''C''GAE}/{FDG'G}{''C'GAE}/{FDG,G}6{'C''GGG}{GGGG}/also RISM 212001450 1.1.1 all:[egr]|o
1.2.1 Grave e spicco · vl · no matching incipit among the attributed copies
8-6-{''bE8.E6E}2E/8-6-{bE8.E6D}2D/No encoded incipit matches this one.
1.3.1 Allegro assai · vl · 19 of 19 pitches agree
''4.C'GEC/''CG'''C{8''GEC}/{AFD}{'B''DG}{EDC}''4.C'GEC/''CG'''C''8{GEC}/{AFD}{'B''DG}{EDC}4-8-/also RISM 212001450 1.3.1 All.[egr]|o assai
Catalogue data and incipits come from RISM (Répertoire International des Sources Musicales), CC BY 4.0. Incipits are rendered with Verovio. Source and data: https://github.com/aaymeloglu/rism-attributions.