This 10 to 1 Box, First Half, is a reproduction of the WWII 10-in-1 ration box.
The 10-1 ration was designed to feed 10 soldiers. A complete 10-to-1 master box contained 4 half boxes – 2 First Half and 2 Second Half. The 10-1 master box could be broken apart to create two 5-to-1 rations. The two first-half boxes contained duplicates of the same food, so that one first half and one second half could be issued to smaller, 5 man squads.
This box, the first half, contained biscuits, cereal, sugar, some kind of candy or chocolate, and partial dinner rations, which were essentially K-rations without the meat can. The second half contained the canned goods, as well as soap and towels or toilet paper.
There were 5 different menus. The menu number was printed, stamped, or hand-written on the box in black ink. The menu #’s are left blank so that you can write in your own menu number. We recommend using a stamp or a fat, chisel tip marker.
The 10-1 was standardized in June of 1943 to replace the earlier 5-1 rations. The box notates 5 rations because the 10-1 was designed to be used both as a whole squad ration or to be split into two 5-1 rations. The Army described it as “an improved 5-in-1, packed two to a case to produce a 10-in-1 ration”