2 VERY RARE GIRL DOLLS THAT FOLD FLAT ARTICULATED TWINS PLASTIC VINTAGE ANTIQUE?

Description

2 Rare Vintage flat dolls fold up baby girls with cute and original dresses, very hard to find.
They have rivets for hinges are about 11 inches tall each and will fold down to about 5 inches and approximately 1 inch thickness when folded.
Will pose in many different ways but no elbow or knee joints.
These are probably at least 80 years old, so, most likely antique.
There is some rubbing off of the paint as you can see, some wear on the joints, but otherwise in surprisingly good condition.
Sold as is, no returns.
I'm pretty sure they were NOT made in the United States, but Russia or China are strong possibilities
I can't really see the manufacturer markings on the dolls, they do fold up quite nicely.
Similar in structure to "FLATSY" dolls but clearly they are not flatsy brand.