In a message dated 4/9/2004 6:48:13 PM Mountain Daylight Time, firstname.lastname@example.org writes:
OGB- type AB. Mark Rogers by Donald Shepard. This nice one is not what I
usually expect in appearance from the type. It's the result of an OGB X
OB-. Most OGB- types that I've seen or grown do not have as much aril
character showing as this one.
It was registered in 1983, under the old quantum system. Analyzing its pedigree, it could be either an OGB- or an OGB under the present system. My money would be on OGB, but it would take some serious testing to prove one way or the other.