No pictures at the ready. I have another reason why I'm not using carpenter pencils, I've hung it all up, so I may not have an example in my shed. Use them, loose them, they were all made from scrap. Better versions can be made ie have the beam edges bound with steel creating a square with an edge that will stand against wear from an awl and offset the points to the dimension of storypole. Anyhow good luck with it.

Here is some info on my approach.

http://forums.tfguild.net/ubbthreads.php?ubb=showflat&Main=1960&Number=8402#Post8402