Does anyone know exactly how many different types of 32 round "Luger snail drum magazine's" were produced?

As most of you already know they were originally designed for the Luger 9mm "Artillery model" pistol and later used on the Bergmann MP18/I 9mm submachinegun.

I've heard of the type 1 "smooth base" and type 2 "ribbed base". I know I've seen another type. Could be type 3, which has a different lever mechanism. There all rare, but the rarest of them all is the type 1? From what I've learned anyway. Correct me if I've got that all wrong.

About how many of these were made? I heard 80,000, but most were destroyed or lost during the war and ordered destroyed after the war, so who knows for sure how many survived.
Wish I had the special loading tool for one of these. Thanks