Give us a clue. Is it definitely called 'the tinker' in English or could it be by a French artist and the title translated? For example, the French sculptor Bouchard specialised in realistic portrayals of workers. A tinker is the kind of subject that he and his admirers would take.
My guess is that ' the tinker' is a typo for "the thinker", itself the most famous of all French sculptures, by the most famous of all French sculptors, Rodin. (And its English title is translated from French, as it happens):It would be an extraordinary quiz that demanded which sculptor created 'the tinker'! Research so far hasn't found any sculpture called the 'tinker' even when the research was in French and for what would be the French for 'tinker' :)