Referring to my trusty list, I show below a list of all the cards that I have listed under 'Empire'. I may have others if they had a clearly identifiable publisher who is already in my list.
Cataract Gorge, Launceston U "R.J." 22
"Derwent" under full steam M
Falls, Sandfly U
Lindisfarne from Natone Hill U
Little Falls, Sandfly. U
Natural Pavement, Eaglehawk Neck M RP
Remarkable Cave, Port Arthur M RP
Scenery near Cascade Gardens U H D Russell
Shot Tower 1908
The Bluff, Bellerive U "Emmie"
Tin Dressing Sheds, Mt Bischoff mine, Waratah U
Tynwald' New Norfolk U Scruffy
Waratah U RP
Wesleyan Church, Mt Nicholas (?) U
Woodbridge Methodist Church M
Woodbridge Town Hall
Woodbridge Village M
Where I have recorded it, M is mint and U is used (not necessarily postally -0 may just be lots of WoB). RP means Real Photo. Only three have an identifiable publisher, but "R.J." presumably had at least 21 other cards. BTW, the 'scruffy' is just a comment on the state of the card!