Cards That Never Were: Scott Bull Topps 1977 & '78

Cards That Never Were is a recurring series in which I create virtual trading cards for players missed in various sets. It is a concept I have borrowed from far too many to list, but I appreciate all of their efforts. More of my creations and many great creations of others can be found in the Custom Baseball Cards Facebook group (and not just baseball cards).
Adter starring at Arkansas, QB Scott Bull was selected by the San Francisco 49ers in the 6th round of the 1976 NFL draft. Bull played three seasons with the 49ers, starting seven games and playing in 36. He completed 39.4% of his pass attempts for 992 yards with three TDs and 17 INTs.
For his efforts, Bull received a card in the Topps 1979 set, which came out after his NFL career was over. That left 1977 and '78 missing. I searched for a long time for decent pics of Bull and came up empty. Ironically, I was doing a search for Marty Domres with the 49ers when I came across an odd pic. It was listed as Domres, but was actually Jim Plunkett wearing a #14 jersey. Next to him was a player wearing #15. I conferred with the folks in the aforementioned Custom Cards FB group and they confirmed it was Bull wearing #15. I also found another similar picture. Those two pics enabled me to make the two missing Bull cards.