Here are a couple of odd objects. They come from the University of Melbourne Archives, possibly collected in the 1970s-80s by Frank Strahan, possibly from Melbourne University engineering, chemistry, geology or other department, or from a business that also donated company papers. Unfortunately there are no accession details to go with them.
The first is described as "Rock Over Gauge" and is about 1.5m long with a timber box containing several timber rods.
The other is a group of metal rods, some with turned ends, and two metal rings with wires attached (welded or soldered) I am trying to find out what the writing on a couple is.