They way I recall pre-Amtrak times, was that each passenger would have a blank check in front of them with the menu, and there was a cup with some pencil stubs to write with. Nothing was pre-printed. No boxes to check. You actually printed out your menu choices. Then the waiter would come by, pick up your check, and review your selections, and clarify certain items, and ask "how would you like that steak?, etc.
It amazed me how they could read some rather illegible handwriting...
The main reason for having the passengers write their selections themselves, was to prevent waste, in case the passenger disputed what they had ordered.
After the meal, the steward came around with the totaled amount on each check, and collected...either in cash, or the rarely held, Rail Travel Credit Card.