Although all these stories are very interesting I would love to have a source to refer to for these facts. I can't seem to find any reputable source online that states Chanel carried or designed the Alma.
Chanel did not design the Alma and I don't think anyone is claiming that she did. I did find a reference specifically to an Alma being made for Chanel in 1925. That reference was a Japanese brand magazine for collectors of LV, written in Japanese. These magazine have very long detailed articles about various points of history and brand specific features. The Japanese are a huge market for LV, so I doubt someone would run the risk of going to print on an article without checking their facts. The magazine was about 10 years old when I found it. It looks reputable enough for me to think it was an interesting thing to share. I am cautious about what I quote and I have been studying the correlations between hardware used on a variety of European designers from about the 50s era onwards for several years now.
Given that these are 2 distinct brands we are discussing here, it is not surprising that they are not cross-promoting a historic event from nearly 100 years ago. LV wants to sell to their market and Chanel want to sell to theirs.