(return to Jacques I Dalibert)
Left: the signature of "Jacques Dalibert" on his sister's wedding contract, 1647 (he uses the rather archaic "round" e and r that was just then being replaced by the new parlementary "bastard" script)
A tracing of the signature of Jacques Dalibert, "clerc du diocèse de Paris," 1652. He has abandoned the "round" script for the new "bastard" one. Note that the gentle curves of the l and b retain the curves of the 1647 signature.
Below this signature is the formal signature of Jacques II Dalibert the Roman, Archivio di Stato, Turin, 37/2, Rome, July 24, 1661. Neither the l nor the b of the Roman's script are curved, and his t not only lacks a curve at the bottom right, but its crossing extends farther to the right than in the t's of the first two signatures.
The signature of Jacques II Dalibert, September 1670, as reproduced by Cametti, Tordinona, p. 58. Jacques II continued making very straight l's and b's, his t showed no curve at the bottom right, and the cross on the t continued to extend rather far to the right.