C&C(US) V.7#3 has a set of French Esc. insignia drawings.
There are a large number of animals and birds used, but I couldn't find one of
a traditional Falcon/Horus.
However the following have an Egyptian look to them:
C66 - bird with outspread wings.
N75 & N153 - bird with one outspread wing.
C56, PS128, SOP271 - scarabs.
VB107 - winged snake.
Following is a link list of Fr. Esc. Insignia drawings:
Index of /-INSIGNES-
Cliff