another picture or two just for reference...... rather hastily I was going to say that possibly Leisa maybe didn't have a matching stopper, but seems these things were made with some variation. I think the cutter was bored with mine - he omitted to cut the series of smallish panels that run around the body just under the lower ring - at least the examples of Startime in Miller's/McConnell have them - pages 236 and 239. The Nos. do match on this example, and about 9" (230 mm) tall with stopper fitted.
The base pattern originates from the mould, and the rest of the decoration looks to be limited to copper wheel work of varying forms.
Startime was apparently a Kny design, factory pattern No. 27542, originally from around the mid 1930's and lasting until the 1960's. There are very few references to this design in the Board's archives, and assume uncommon in decanter form - don't recall seeing one before today.
P.S. just noticed the lack of polished pontil scar on Leisa's bottle, and in Miller's pix can't see any - possibly the base pattern was cut on those (to obliterate the pontil scar) whereas mine has a moulded base pattern.
The mould was also provided with indents on the neck, thus creating the 'rings' when the piece was blown - no likely an inexpensive piece to produce.