I can't seem to find anything regarding this on here, just lots of complaints/issues regarding size. I believe the website used to say something along the lines of "passenger must be able to lift it into the overhead bin unassisted."

Anyway, I have over 100 pounds of coins to repatriate to Europe... Obviously it would be quite difficult to carry anything near that quantity at once, just wondering what I *should* be able to get away with, storing some in a messenger bag underneath the seat in front of me and some overhead in my regulation sized bag.