These canopic jars come from a place whose modern name is Harageh, near the more famous site of Lahun (where the Pyramid of Senwosret II was built). They are (roughly) contemporary with this pyramid, as they date to the 12th Dynasty (nearly 4000 years ago).
Each of them once held one of the mummified internal organs of a woman called Senebtisi, preserving them so they were there for her in the afterlife. The organs were buried separately for practical reasons – it’s easier to dry everything if the internal organs are removed first.
Each of the organs was under the protection of a particular one of the four Sons of Horus. The inscriptions on the front of the jars not only name the deceased but also the god who is asked to protect the contents of each jar.
They are now in the Brooklyn Museum (acc. no.s: 14.662, 14.663, 14.664, 14.665).
See the photo on my photo site: https://photos.talesfromthetwolands.org/picture.php?/58/
And I once gave a 10 minute presentation on the subject to the Essex Egyptology Group: https://www.facebook.com/margaret.l.patterson/videos/10154572478301916