Enid Collins of Texas 1961 "Butterfly Box" box bagheight - 6 1/2"    width - 11 3/4"    depth - 2 3/4"
Enid Collins of Texas 1963 "flutter-byes" box bagheight - 8 5/8"    width - 11 1/8"    depth - 2 3/4"
Enid Collins of Texas 1965 "flutter-bye" box bagheight - 8 1/2"    width - 11"    depth - 2 3/4"
Enid Collins of Texas 1966 "flutterbye box" box bagheight - 6 1/2"    width - 11 7/8"    depth - 2 3/4"
Enid Collins of Texas 1963 "flutterbye box" box bagheight - 5 3/4"    width - 11 1/8"    depth - 2 3/4"
Enid Collins of Texas "flutter-bye" box bagheight - 4 1/4"    width - 8 5/8"    depth - 3 1/4"
Enid Collins of Texas "flutter-bye" box bagheight - 4 1/4"    width - 8 5/8"    depth - 1 3/4"
Enid Collins of Texas "flutter-bye" box bagheight - 4 1/2"    width - 7 1/4"    depth - 3 1/2"
Enid Collins of Texas "flutter-bye" box bagheight - 4 1/8"    width - 8 1/2"    depth - 2 3/4"
Enid Collins of Texas untitled (flutter-bye) box bagheight - 4 5/8"    width - 7 1/4"    depth - 3 1/2"

Butterfly Box (1961) appears to be the earliest butterfly-themed box bag.  It seems to be the beginnings of not only the "flutter-bye" and "flutterbye box" designs, but also the "glitterbugs" theme.   Flutter-bye is apparently an old English word for butterfly, and today certainly has happy fairy connotations.  Such a playful word!