Here’s a case of Meals, Combat, Individual (MCIs):

and here’s the side of the case that shows the date packed/inspection date:

When you open the case, here’s what it looks like:

Here’s a breakdown of the contents of a case of MCIs from 1978.
[Menus 1-6] [Menus 7-12]
1 – Beef w/Spiced Sauce, Halved Apricots, Peanut Butter, B-1 Unit – crackers, candy |
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2 – Tuna Fish, Quartered Pears, Peanut Butter, B-1 Unit – crackers, candy |
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3 – Ham and Eggs, Chopped, Quartered Pears, Peanut Butter, B-1 Unit – crackers, candy |
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4 – Pork, Sliced, Cooked with Juices, Halved Apricots, Peanut Butter, B-1 Unit – crackers, candy |
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5 – Beans w/Frankfurter Chunks in Tomato Sauce, Blackberry Jam, Fruitcake, B-2 Unit – crackers, cocoa beverage powder |
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6 – Beef Slices and Potatoes w/Gravy, Pineapple Jam, Orange Nut Roll, B-2 Unit – crackers, cocoa beverage powder |
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[Menus 7-12]