these are what i found off the internet. The first link should be the most persistent one since it has been around at least since i first discovered the identity of my boat. The others are from sales adds. I have copies of the original brochures with sail plan and layout diagrams if you're interested.
BtNet - Annonsid: 76922 - Olle Enderlein Arietta
Arietta . , segelbåtar - Båtbörsen
Z-Travel - Arietta 31