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<a href='http://http://kidcrave.com/scoop/history-of-lunchboxes/' >more info
often had picture of children playing, resembled picnic basket -
<a href='http://smithsonianmag.com/arts-culture/the-history-of-the-lunch-box-98329938/"
first popular character to appear on a lunch box -
more info
3-d effect, raised image embossed on metal lunch box -
more info
very poor quality, did not gain popularity -
more info
plastic was less expensive to manufacture than metal -
more info
fit easily into backpack -
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more info
machine washable in case of a leak or spill
