In this topic, perhaps some members could shed some light on the origin of this rare fig.

I was scanning in IRA J. CONDIT's book "FIG VARIETIES" written in 1955, in which he lists the Col de Dame Blanc and Noir, but fails to mention the Col De Dame Gris.

Baud has it listed as a third Col De Dame variety on his site.

If anyone knows anything about the origin or history of this fig please share your knowledge and experience here.

I believe Herman regards this much better than blanc in his location, juicer, tastier and earlier to ripen (it is not infected like his blanc is with fmv).  I have one from Baud and it is slower growing than the blanc or noir, the roots seem to take a bit longer but assuming it survived the winter I think this will change this year as it put a good amount of roots on in the 18 gallon container.  The leaves look similar to the blanc and noir for me, I believe in warmer climates the differences are minute between the three but those differences may show more in colder climates where maturation is not as ideal as these warmer climates.  It growers same habit as the noir and blanc for me though, straight up, you need to prune it to force branching in my experience (1 year).  All three seem to grow relatively slow compared to others, but it is a stout and strong growth with good stem diametre.  Hopefully I can share more this season.

I happen to have all three in their first year. I Left them outside in the ground this winter and they all suffered some winter injuries. The top one third of the tree looks dead.
The new growth is happening from the area closest to the ground and on the thick part of the trunk in the bottom half area. It is too early to tell how things will look like later this summer.
Their growth habits are very similar.
I must add that to my surprise, the Blanc received from UCD did not display obvious signs of FMV last summer except for one cutting out of three. It was much weaker than the other two and developed much slower.
I was even able to sample the fruit of the Blanc in its first year from the tree that went in the ground, which was outstanding. It ripened late in the fall and now I'm sure that these varieties need a long warm season if kept outside.