All my Mom's Dutch cookbooks measure ingredients by weight for non-liquids (but using units of mass. #NerdPedantry)
She had this marvellous litre-sized measuring cup with different graduations by weight for different foods, like flour, sugar, shredded coconut.
It was conical, smaller at the base than at the top, so measuring small quantities was more precise than measuring large ones.
Sadly, the plastic got grotty and brittle over its 60 year life, so it is no more.