Joseph Smith explains facsimile 3, figure 1 as follows:
Abraham sitting upon Pharaoh’s throne, by the politeness of the king, with a crown upon his head, representing the Priesthood, as emblematical of the grand Presidency in Heaven; with the scepter of justice and judgment in his hand.
This is not found in the Bible but Jeff Lindsay notes how this is consistent with other ancient texts such as:
What are the odds Joseph Smith would have gotten this correct?
See: