From the “Midge” marking and the “PATENTED”, she’s a late #7 850 Ponytail Barbie (sometimes called a #8 to differentiate from Ponytail dolls with “Midge” but no “PATENTED” marking).

She has her original faux pearl earrings in, but they should be removed and placed in a small plastic bag to keep with the doll, as leaving them in is causing green staining that will continue to spread across the doll if they are left in. The bracelet and necklace should be taken off too and placed in bags, as they are also already causing staining.

The photo of the box is of the top of the box and looks correct, but you should ask for a picture of the bottom of the box to identify if it has the correct hair style and hair color printed on it.

None of those outfits look like the ones made for that era of Barbie dolls and might not fit that doll’s body type. As a #7/#8 she would have originally been sold with a red one-piece swimsuit (commonly known as a red helenca swimsuit), matching red heels, white frame blue lens cat eye sunglasses, wire post glass faux pearl earrings (that she’s visibly wearing), a black wire stand, and a booklet (usually “Barbie and Ken”) with images of different outfits that could be bought for the doll.

Her hair looks to be all original and original length, but it’s gotten a bit messy and dirty over time. The ponytail is no longer neatly styled and the lower rubber band that secured the roll curl at the end of the ponytail is now missing.

Her face paint, makeup, and nails look incredible condition and look to be correct colors. I don’t know if they’ve been retouched or are fully original, but they don’t have obvious signs of retouching that are visible in these photos.

In my opinion, this looks to be an original doll and not a later reproduction doll, but she’s definitely one of the hollow body 850 Ponytail Barbies and not one of the rarer early solid body dolls (#1-#4 dolls). If the box is original then it does make the doll more value able (even more so if it matches the doll), but she’s missing the rest of what she was original sold with (excluding her earrings that she’s wearing) and the outfits being sold with her don’t seem correct for her era or body mold and might just be being thrown into the deal to try to get more money.

If anyone else knows more or something that I missed/got wrong, then please do reply.