The words “ancient Egyptian coffin” conjure up images of gold, of intricate decoration & texts, and of human shaped boxes. But this was not always the case, and earlier coffins (like this one which dates to the early Old Kingdom) can be quite a bit less ostentatious & elaborate.
To start with it’s shorter than you might expect – this is because in this period (c. 2500 BCE) people weren’t laid out straight for burial. Instead they were placed in their graves curled up in a contracted position that’s sometimes referred to as the foetal position.
But don’t mistake it for a cheap or shoddy piece of work. Decent wood wasn’t plentiful in ancient Egypt, so a wooden coffin is demonstrating that you can bury a certain amount of wealth. Even given it was local Egyptian tamerisk wood I imagine it would still make a statement.
It’s also shaped to convey meaning. The long sides mimic the palace facade motif, which is part of the king’s iconography and is also used in the funerary context by more than just the king. The lid is vaulted and this is the shape of the shrine associated with Lower Egypt.
This coffin was excavated by Petrie at Tarkhan in the Faiyum and is now in the Met Museum (acc. no.: 12.187.54).
See it on my photo site: https://photos.talesfromthetwolands.org/picture.php?/1370/