Mine came with my MIJ knock-off P-Bass from the Mid 80's.One of those came with my Ibanez ST-50 in 1982. I still have it & to this day I don't have a clue what it's for.
I assumed it was for locking tuners which the ST-50 doesn't have!!!
I never tried 'Wilization' though.
First "blocks" are specialized and unfamiliar to me.
I could guess. Less than 50/50 chance...
But the second image is something very familiar to where my career and hobbies started...
A gunmaker I once knew had a whole mess of floats, just like these. He roughed out a gunstock and then used the floats for final bedding. Using lamp-black he would use the floats to knock those spots down. Round ones were for the barrel and action surfaces which were round. Flat ones for the flat surfaces, etc.I did an image search and I learned something today.
They are a specialized type of a tool known as a Float. Apparently I have some old floats that I was calling rasps. Mine are just flat, probably for joinery. They are said to provide a fine surface similar or better than scrapers.
The ones from your picture have offset handles, cut on the push and have concave cutting surfaces.
This link https://www.ukworkshop.co.uk/threads/unusual-mathieson-tool.57648/ suggests they may be for making gunstocks or something similar. I didn't see any firm conclusions but it seems plausible for either that or maybe the big one was for banisters or something.
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Lie-Nielsen has a number of floats for plane making and joinery. https://www.lie-nielsen.com/nodes/4081/floats
This is a pull-cut face float.
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EDIT: Ok, just found this: Much more info - cabinetmaker's floats. https://toolsforworkingwood.com/store/blog/587/