ACDAEA'S Hixenbaugh and a 'Private Collection' Incantation bowl and a Cunie

Hixenbaugh Ancient Art don't seem very precise about the collecting history here, among his Recent Acquisitions:

Aramaic Incantation Bowl

At some time in some American
private collection (he says)

An ancient Aramaic incantation bowl with an outward spiraling text inscription. The text consists mainly of a long enumeration of magic names including the names of angels. Ca. 6th - 8th century AD. Diameter: 7 in. (17.8 cm).
TRANSLATION 1 Sealed and double sealed is this Berikh-Yahveh son of Mamay in the name of tbwr tysb bn tytr yzrym smrt y w Yaho El Yaho pry yyy w Abraxas 2 lqw nyssth yyy w yyy w yw y yw y yy yy yy yy Yah Yah Yah smw h qnt qynwty yhwmy ss swlm tw 3 tysw pl w mpl w y w Lord d w yqw pry blh nw th hwmy hy y yy ylmn br 4 thwt w wrm Shaddai, my God, Hazael, God lives, Q(ados) Q(ados), st w bl tw Lord, the Lord, 5 I am Ehyeh, I am El, He that one, this is He, Michael and Gabriel, 6 Sabaoth, Sabaoth, Sabaoth, Sabaoth, Sabaoth 7 Sabaoth, Sabaoth, Sabaoth, 8 Sabaoth.
Formerly in an American private collection, translated by Dr. James Nathan Ford, Bar-Ilan University, Tel-Aviv. Inv#: 7600 $2,750
Guaranteed Authentic  

Prof. Ford has been working on the Schoyen incantation bowls...
Then there is this

Sumerian Cuneiform Tablet

An ancient Mesopotamian clay tablet inscribed on both sides with a total of twelve lines of Sumerian cuneiform text. Ur III Period. Ca. 2144 2124 BC. Height: 1 1/2 in. (3.8 cm). Intact.
Formerly in the M. S. collection, New York; previously with Tom Cederlind, Portand, OR. Inv#: 7423 $1,000
Guaranteed Authentic

So, Tom Cederlind sold it to "MS" (when?) and....? Well, unfortunately for us, Mr Cederlind died in 2015 so we cannot find out more about the collecting history from him. So where did the late Tom Cederland get it from, and when?

But this MS Collection is the stated origin of other material from Mesopotamia that is currently "surfacing" on the market.   Bob Darge of Artemis Galleries has other items being sold with the same stated previous owner, including a Gudea of Lagash foundation cone.