Early 20thC settlers need a different spanner for each size nut or bolt.
Now socket spanners often come as a "socket set" with many different sizes or types of sockets to fit the heads of different-sized fasteners. Among the early settlers in Moorabbin Shire were blacksmiths who made tools for the other settlers who were establishing the homes, market gardens, farms, orchards and various businesses. Early settlers were self reliant and repaired their own equipment for kitchen,dairy, farm, horses, carts using various tools
This spanner is typical of the type used by early settlers in Moorabbin Shire early 20thC
A small steel socket spanner