Hmmm cannot see it Doug, yes, I like perfins too, but little is available in the public domain.
The Aussie catalogues (private and commercial) IIRC run out at a pretty penny, meanwhile hordes of the blighters (perfins)queue up BOB.
Tony,
It makes a big difference to the perfin classification, but (perhaps) not to the owner of the punch die. I'd wager 3 Novas they are Vacuum.

By 1908, Vacuum was growing rapidly and merged with the Colonial Oil Co, a company marketing
kerosene and motor spirit, adding to Vacuum's specialty lubricant products. In 1916, Vacuum
introduced its "Plume" and "Laurel" brands to the Australian market and a year later brought its first
100 gallon, horse drawn tank wagon into service.
As motor vehicles became more popular in Australia, Vacuum expanded its operations. In 1924
Vacuum opened its first bulk petroleum products terminal at Pulpit Point in Sydney and took
delivery of its first imported bulk oil products cargo, a 1.5 million gallon shipment carried from the
United States by the tanker "HT Harper".
A decade later, Vacuum introduced "Ethyl", Australia's first Super grade motor spirit. Around the
same time in the US, Vacuum's parent company, Vacuum Oil Inc, merged with the Standard Oil
Company of New York to become Socony Vacuum, then Socony Mobil that ultimately became
Mobil Corporation. Vacuum replaced the famous Plume brand name with Mobilgas in 1954.
