This has been a question in my mind also, my survey has no 1930 rifle so far, but I would never say never on this one.
The countback of rifles shown at the Lithgowicon Museum don't help to clear the confusion either,
Attachment 67395
Though this display is supposedly complete, either 1934 never existed or 1930 didn't.
But there are 1934 examples, so at this stage the '30 gets the shaft.
On a lighter note, I have added a '29 to my lot, leaving only a handful to get
Attachment 67397Attachment 67396Attachment 67398