The research I did on the 1964 NFL All Stars vs the 1964 National NFL revealed:
ON 1964 NFL ALL STARS BUT NOT 1964 NATIONAL NFL:
ROOSEVELT BROWN, BOBBY JOE CONRAD, BILL FORESTER, BILL GEORGE, ROOSEVELT GRIER,
RON KRAMER, DICK LANE, ED MEADOR, LARRY MORRIS, JIM PATTON, JOE SCHMIDT
BOB ST CLAIR, WILLIE WOOD
All the players I found that are on the 1964 National NFL are big heads. I did not find:
Maxie Baughan, Raymond Berry I could not tell for sure, Gail Cogdill,Galen Fiss I could not tell for sure,
Lee Folkins, Bill Glass, John Gordy, Joe Krupa, John Lovetere, Joe Marconi, Dale Meinert, Jack Pardee,
Richie Petitbon, Vince Promuto, Mike Pyle, Joe Rutgens
Since I did not see any Small Heads on the ones I looked at, for the time being I am considering the Big Heads to be 1964 National NFL and the Small Heads to be 1964 NFL All Stars. The other thing I did not consider is that maybe Coke issued the Saver Sheets and then did the caps to match and maybe the Tab and Fresca caps are different. Any other help would be appreciated.