12  (Early Series)    Small low-waisted two-cone jug

Does this shape appear in other series?  No -  (none recorded).
There is a vase version of this jug, Early Series 46.  Compare with Early Series 178 which is similar but with a high waist.
A single example is also recorded of a wall vase version, un-numbered.

Height; approx 10 cm

Philips Auctions
Shape book 'E'

12 (Early Series)    TWO SHAPES
: This  Early Series number was assigned twice, first to a PPP shape and after PPP was discontinued in 1934, to a Remued shape.

Base stamped PPP, incised 12.
Un-numbered, stamped PPP.

12  (PPP; Early Series)     Small jug with narrowed throat.

Does this shape appear in other series?  No, not exactly (none recorded in image database) but several other small jugs are somewhat similar, including un-numbered PPP jugs.

Height;  8 cm.
Habadash, Castlemaine Vic.