The states or provinces as thin lines, each named on its own land, and the neighbouring countries named round it.
Named in spaced italic as on an atlas, level, ranges along their length (Great Sandy Desert, Nullarbor Plain…).
The tropics, the equator and the polar circles as dashed lines across the plaque, named, where they cross it.
The larger lakes cut through, so the water sheet shows; smaller ones engraved as outlines, and salt lakes (Lake Eyre) engraved solid.
Parts too far away to frame (Alaska, Hawaii, the Canaries) in boxes of their own in an empty corner, at their own scale.