338  (Early Series)   Slender flaring waisted vase; 'waisted cylinder'.
Does this shape appear in other series?   Yes - (without applied decoration)  Later Series 36; and also at the beginning of the Early Series, Early Series 3/5

Height; 12.5 cm

Both incised just 338, without suffix - no 'B' suffix as usually present with koala decoration, nor 'M' for gumleaf decoration.
These are the only 338 examples yet recorded.