Yes it's an Acremaster.
Originally built/sold by Phillips in Merredin Western Australia from 1975-1985, then sold by International Harvester from 1984-85 (reportedly quite a few were exported to USA/Canada), then manufactured/sold by Horwood Bagshaw from 1985-c.1987? The one pictured is a Horwood Bagshaw Acremaster probably the rarest of the breed.......Subsequent to 1984 when Laurie Phillips (owner/designer/engineer) sold Phlllips Tractors to another party,he went on to resurrect the "Acremaster" design again c. 1985 which was sold in parallel to the other branded "Acremasters" as a Phoenix until c.1989...interesting times & don't see how this could happen today...
Proud to say on our farms we continue to run three Acremasters, one we've one owned since new.....a formidable tractor & I'd buy another new or S/H in a second !!
(unfortunately those around are held onto tightly so they're almost never on the market)
Anyways let's try something a little more "exotic", but still with a Mercedes engine & no it's not Australian built (though there's one or two over here...):-