Looking perhaps similar to the Ark of the Covenant, this is the table with Showbread a symbol from the 4rd degree of the Ancient and Accepted Scottish Rite and probably some other systems and degrees.
Les Plus Secrets Mysteres (1820) says:
The altar which contains the shewbread, signifies the union which should reign between the brethern who participate in this banquet.
general AASR symbol. Year and designer unknown.