They were; with two large chapiters, one on each.
"The Mysteries of Free Masonry" by William Morgan
They were adorned with two chapiters, five cubits each.
"Masonic Monitor of the Degrees of Entered Apprentice, Fellow Craft and Master Mason" by George Thornburgh
The sockets were buried in the sand, and the hooks and chapiters were above.
"Notes on the book of Exodus" by C. H. (Charles Henry) Mackintosh