Germplasm pedigree

This is a pretty cool figure that is hard to find, I got a hard copy sent to me and scanned it. It is a pedigree of all the publically available lines of sunflower up until 1989. I plan on cleaning this image up and possibly scanning it again, I thought I would save it on here in the mean time. It looks okay if you zoom in.

It is from this paper:

Korell, M., Mosges, G., and Friedt, W., (1992) Construction of a sunflower pedigree map. Helia 15: 7-16