Corn Mummy
Wood, clay, sand, corn, linen
Ptolemic Period to early Roman Period, 320 B.C.E - 150 A.D
Dimensions: 5 3/4 x 6 7/8 x 19 11/16 in. (14.6 x 17.5 x 50 cm)
Provenance not known
Brooklyn #2007.1a-c, Gift of Caren Golden in memory of Eleanor L. Golden.
Photo © Joan Lansberry, May 2008-2016

(From the info card)
""During annual rituals honoring Osiris, the ancient Egyptians fashioned small 'mummies' from a mixture of clay, sand, and grains of corn. These 'mummies' were wrapped in layers of bandages and placed in coffins decorated with images of the falcon god Sokar..."

Hunting for "Sokar" brought up the relevant museum webpage, where a translation for the inscription is given:

(1) Hail, Sokar-Osiris, Greetings Re-Hor-Akhty and Khepri who created himself. How beautiful is your rising on the horizon
(2) when you illuminate the two lands with your rays! (All) the gods rejoice when they see Horus, King of The Sky, the Wnwt-cobra on your head,
(3) the Crown of Upper Egypt and the Crown of Lower Egypt on your brow.
(4) They have made their seat, while Thoth abides on the prow (of the sun boat.)
(5) Thoth abides in order to see the beauty of this, your image. I have come before you and I am with you.
* Text on Corn Mummy translated by Edward Bleiberg and Paul O'Rourke

I rotated and adjusted a museum website photo:

And a Google-search has brought up further information:

Corn-mummies and Osirian statues
"The god Osiris was closely associated with vegetation, and particularly with germinating grain. The emergence of young growth shoots from the fertile mud of Egypt was regarded as a powerful metaphor for human resurrection, and this notion was given physical form in Osirian images and figurines in which earth and corn were basic constituents. Some royal tombs of the New Kingdom contained an 'Osiris bed', a seed bed in a wooden frame or on a piece of textile, made in the shape of Osiris. This bed was planted with barley, which germinated in the tomb, symbolizing the renewal of life for the dead king via the agency of Osiris. A similar concept underlay the creation of 'corn mummies', figurines composed of earth or mud mixed with grains of barley and fashioned into a miniature mummiform image of Osiris. These figures were manufactured in an elaborate temple ritual during the month of Khoiak, and then buried in areas with sacred associations..."
(_Death and the Afterlife in Ancient Egypt_, by John H. Taylor, page 212)

Maria Centrone summarizes: "In a word, corn-mummies were 'amulets of life' that shared with Osiris the same destiny of dying and coming to life again, thus assuring the renewal of the universal Order." (_Corn Mummies, Amulets of Life_, in Through a Glass Darkly: Magic, Dreams and Prophecy in Ancient Egypt, edited by Kasia Szpakowska, page 41)

Jan Assmann tells more about these 'rites of Khoiak':
"In Papyrus Jumilhac, a genuine 'priestly writing' in the biblical sense, which codifies all cultic knowledge regarding the eighteenth nome of Upper Egypt in a truly magnificent handwriting, the festival is called Khebes-Ta, 'Hacking up of the Earth,'..." (_Death and Salvation in Ancient Egypt_, by Jan Assmann, translated by David Lorton, page 363)

"Osirus with 28 stalks of wheat growing out of his coffin"
Moustafa Gadalla, Egyptian Mystics, page 87

which he got from the Temple of Isis at Philae
- Note the foundation of ankh and was scepters upon which Osirus and the attending Priest stand.