I realized that the last two blonde haired Barbies are from the 70s, but I decided to throw them in with the lot at the last minute. They both have bendable knees. The four older dolls are straight leg. Two have Japan written on the arch of their foot and one has Japan on the toes part of her foot. I don’t see any split joints or splits in the plastic or green ears on any of the dolls just paint loss. They are all dirty and need to be cleaned. None of them have chewed hands or feet. I honestly believe they will clean up nicely. Please see all pictures and thanks for looking!