Thanks, yes there are doubles and some not true correct to the period, but i had to put them somewhere. For example I have 3 other Lewis broken case extractor tools, all having different markings, but have only put one in the box. The others, like most, will be put away in a box, placed into some area of my shed, and never seen again until accidentally found or the kids are having a clean up when i am long gone.
As for the spelling on the box, not sure what period that this was marked, i would say later on in its life. FIELD or FILLED not sure, but spoke to a collector and there is no reason why it could not have been FILLED, but at a guess it should have been FIELD.
The owner of another Australianbox should be able to correct this or a CES list will confirm the correct title.