The whistle of the knife sharpener.

Pencil and watercolor on Pentalic watercolor journal 7" x 10"

Many years ago, during my childhood, before knife sharpeners were available as a kitchen tool, you would hope to listen to that whistle. A couple of dull knifes from this place needed some attention, the price? I asked him, 15 MXN each (about 0.75 USD each), so I handed the knifes to this man through the window. There, while this man was working on the precious tools, I took a photo from up the window looking down to the street.  The portable sharpener consist of a monocycle with pedals attached to a chain that rotates the sharpening stone. All the transaction was made through the window. I really liked how Hello Kitty was in his key chain. This memory had to make it to my sketchbook. While he was walking away, I recorded the sound of his whistle. Did you miss it at the beginning of this post? Here it is again. 
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