Loetz 3-handle Shape #12 - Jug

This is the Jug shape, two colors and one size. This shape is always in the scroll signature and I believe had a limited run in the later 20's to mis 30's.

Here are a few patterns that have emerged with this series:
1. Only about half of the 3-handle application pieces are signed
2. Of the pieces signed 60% have the oval mark, 20% of shapes can have both marks and 20% have the scroll mark exclusively
3. The common pieces where the shapes appear over and over are oval marked
5. The rarest shapes have the scroll mark exclusively
6. shapes that come in many colors come in many sizes, shapes with lesser color come in lesser size variation

Why does this type of Tango application glass have two signatures?
... an assumption that I had before won't work.

Theory #1: I assumed that Loetz produced these 3-handle pieces exclusively then a competitor (or partner) made the same shapes in a limited color range. If this were true then why would a competitor copy Loetz then produce shapes that were original and much rarer?

Theory #2: Loetz used the oval "Czechoslovakia" mark for export (to nations requiring it), then changed to a scroll mark in later years of production. This theory could work but why is this not seen in any other kind of Tango glass? In most Tango the standard colors come first then in later years the colors go crazy...

Just for the heck of it, theory: Pieces produced by Loetz were sold to an exporter with the oval mark. A different exporter bought pieces (perhaps in colors that were cheaper to produce) and required their own mark to be applied (same shapes different mark)...then later wanted original shapes in those limited colors to be produced.

please share your theories folks

Pic 1 - Green with cobalt
Pic 2 - Tangerine with cobalt
Pic 3 - Orange with black