Exodus 26:21 in the King James Version
And their forty sockets of silver; two sockets under one board, and two sockets under another board.
Context
20 For the second side of the tabernacle, on the north side, twenty boards,
21 and their forty sockets of silver; two sockets under one board, and two sockets under another board.
22 For the far side of the tabernacle westward you shall make six boards.