Bar code

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I keep a bar code for the library on my bicycle helmet so that it is always with me.

I studied the one on my card, and guessed that the Sonoma county library uses CODA BAR (NW7) with start char B and stop char C

My printer software "P-Touch Editor" does not seem to be able to generate these, so I use http://generator.onbarcode.com/online-codabar-barcode-generator.aspx to generate a PNG which I can then print.

I don't ride my bike to the Marin or Woodland libraries often enough to carry them up there.

file src="helmet_barcode.png"

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