1933 Mermoz/Arc En Ciel Flight Cover Questions.

Hello everyone.

I have this flight cover from 1933. As I understand, the covers on this flight were only adressed to the members of the crew. The crew members are mentioned on the green label. This cover is adressed to Manuel, he was the Radio operator. I also know of an example adressed to Mermoz(sold in a Kelleher auction)My questions are as follow: 1 Are more covers known with the names of the other crewmembers? 2 How many covers were issued to each crewmember on this flight, or how many covers were on this flight all together?

I know that adressed to Manuel 6 examples excist(shown to you is 1 example of the 6 that I have)