On the left, we see a depiction of the showbread or bread of the presence.  I write about this feature of the tabernacle in “Bread of the Presence.” Pages 4:446-447 in The Encyclopedia of the Bible and Its Reception (EBR). Edited by Hans-Josef Klauck. Berlin: Walter de Gruyter Publishing House, 2012.

Click for link (though it's probably best to see if your library has it).

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