If there are any 1971 Partridge Family trading card experts out there, help is needed in sorting this issue out! There were 3 series of cards each with a different frame color - yellow (1st), blue (2nd) and green (3rd).
These were issued in 5 cent packs and later (?1973-4) in 10 cent packs and in a variety of box shapes. They were also issued in cello packs.
The first series had a nickel fold wrapper with larger size ads (0-490-87-01-1), the second had a penny fold with smaller size ads ( 0-490-86-01-1). and apparently the third series may have been issued in the same wrappers and folds as the first series.
Can anybody shed some more light of this. Were the numbers of cards in the 5 cent and 10 cent packs different? Were all three series available in cello packs? Is there a way to distinguish the 1st and 3rd series packs?
Here is another piece of the puzzle - a 5 cent series 2 square box: