Such ‘early’ cartouches1,2 of the Aten are extremely rare since they were systematically destroyed when the Amarna Period collapsed

Aten early cartouches, calcite tablet

Detail of a calcite tablet with the two early cartouches of the Aten H 5.1, W 4.2, D 1.3 Ägyptisches Museum und Papyrussammlung Berlin #ÄM 2045

Blue glazed early cartouche of the Aten

One blue glazed early cartouche of the Aten2 H 5.5, W 2.0, D 0.4 Ägyptisches Museum und Papyrussammlung Berlin #ÄM 21967

Blue glazed early cartouche of the Aten, Freer

One blue glazed early cartouche of the Aten H 2.0, W 1.0, D 0.3 Freer Gallery of Art #F1907.165

References

1Wilkinson R H. The complete gods and goddesses of ancient Egypt, 2003, Thames & Hudson, pp. 236-241
2Akhénaton et Néfertiti, Soleil et ombres des pharaons, Silvana Editoriale Spa, Milano, Italy, 2008, p. 236, no. 143