Really? Berthiot's 1912 catalog lists f/16 Perigraphe Ser. VIa in focal lengths of 45, 60, 75, 90, ... These are ultrawides, claimed coverage 115 degrees. A 1907 Goerz catalog lists f/6.8 Dagors in the same focal lengths, claimed coverage only 90 degrees. All six elements in two groups, as is the Angulon. IIRC, W/A Aristostigmats are all 4/4 double Gauss types. TTH's Primplane Ser. VII, a wide angle triplet, was introduced, according to the VM, in 1907.