Catalogued in RISM as “Symphonies–G major; Manuscript copy; S-SK 491” by Anonymus. RISM 190008967
Same music
The one encoded movement matches: Symphonies–G major (RISM 170000057, 1.1.1 Allegro).
Attributed copies compared (1 of 1 encoded incipit match):
1.1.1 Allegro · vl · 16 of 16 pitches agree
'4GG{6DC,BA}4G/{8B'D}{6GF8G}{6DC,BA}4G/'4GG6{DC,BA}4G/8{B'D}6{GF8G}6{DC,BA}4G/8{B'D}6{GAB''C}8{D'B}''4G/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.