Edition: Gilbert Reaney, ed., Early Fifteenth-Century Music, 7 vols., Corpus mensurabilis musicae, 11 ([Rome] : American Institute of Musicology, 1955- ), 3: 28-42.
Sanctus is fragmentary
Dating based on Grove (says Grossin was active ca. 1418-21)
No model in Wegman. Unclear what kind of mass this is. Agnus dei not in Wegman.