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I would worry more about height of the nail for the wheels...
It seems that middle of the wheel is at the end or very close to the edge of the wood block...

Hmm..
My grandfather was a carpenter...
Some very fond memories are waken up by this photo...
and as far as this part of the world is concerned, carpenters have no need for pencil sharpener in so...

Now, that's atmospheric shoot!
Love it!