Short answer: I think so.
The first mesh bag looks like it. I'm pretty sure cat's eyes like that are post-1950 technology, and Alox had stopped making marbles by then.
What I've read is that they first distributed others' marbles, then started making their own, then quit making their own, all before 1950, but at that point they had a huge backlog they still needed to distribute.
p.s. My information as meager as it is, is cobbled together from a couple of sources and neither is American Machine-Made Marbles. Does that say anything more helpful about the subject?
update: I have since read the Alox material in AMMM. And I have seen other Alox packaging from other sources. Alox has made more marbles than most people are aware of. I'm still puzzled about the presence of the cat's eyes, but it is true that Alox had cat's eyes in stock. In addition to whatever regular packaging they had, they also gave cats eyes away as a promotion to sell shoe laces.
Edited by modularforms, 05 July 2008 - 05:39 PM.
add'l info