I can not get to my plow at this time to take any pic. The ohio steel plow has a piece of all thread that was used for depth adjustment.I think ohio steel made garden plows before brinly starting making them back in the 50s and 60s. Also on the ohio steel plow the coulter standard slides up and down in a metal tube in stead of using a u-bolt like the brinly plow. Thank you for your help.