Shipping case experts,?
 

both 1973 2 different colors different graphics
1 slightly larger

Nice!! My guess is the left one contained the “all 660 cards” packs and is bigger due to 576 extra team checklists.

John

Shipping
 

Thanks
I thought that might be it

Any stamped case codes on those indicating ship dates Larry?

The bottom code on 452 matches
The bottom code on the 403 box is 401

Thanks for reaponding Larry but I mean the black codes stamped somewhere on the shipping cartons, something like 211522.

First digit is Quarter of the year, next is month in that quarter, third and fourth the specific date, fifth the year and sixth the shift that packed and shipped the case. Using my example: April 15 1972, 2nd Shift.