In 2000, Ley Watson did some research on the 14 staffs at the Tredegar Iron Works. I have a copy, but out of respect, I would have to email him for permission to post or pass along, if my contact information for him is still current. The staffs held there were from 1" to 2 1/2" in diameter, and ranged in length from 75" to 104". Some were turned wood, some stained, and some were mere tree limbs.