Incipit offi[ciu]m noue solle[m]pnitat[is] corporis d[omi]ni n[ost]ri I[e]h[s]u Cristi :|bqua[m] constituit d[omi]n[u]s Urban[us] papa quart[us], celebrari singulis a[n]nis cu[m] prop[ri]is octauis p[ri]ma quinta feria post octauas Pe[n]tecost[es]; 091 R263 1343; L. Tom Perry Special Collections; University Archives; Harold B. Lee Library; Brigham Young University