Hi im sorry,
ill try to explain it step by step.
Due to a slow macbook air i decided to formate my disc and to reinstall Mac os.
Before i formated the disc i whanted to save all my photos so i whent into:
Mycomputer:pictures and moved the iPjoto folder tom my EHD.
Then i formated the disc on my comp, reinstalled macOS. so far so god.
I tried to open the library on my EHD with iPhoto i could choose wich library i whanted to view i choosed the one on EHD. but the pictures came out as thumbnail size. Then i tried to import the pictures from the data file under the iPhoto folder on my EHD - again thumbnails size.
Then i heard from the apple suppurt that there is supposed to be a file in iPhoto on the EHD named originals - that one i dont have. The iPhoto folder on the EHD does not look like an iPhoto folder it looks like an ordinary folder.