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The penny trick I saw at a used bookstore in Portland

I was browsing the bottom shelf of a cramped used bookstore downtown and watched the owner fix a loose hinge on a 1920s encyclopedia set just by sliding a penny into the spine gap. Has anyone else seen this kind of quick fix hold up long term, or does it actually damage the binding over time?
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2 Comments
mark_cooper
My grandfather used a dime to fix a rattling window frame in his 1940s Ford truck and it held for like fifteen years until he sold it. Books are different though because the paper and glue just give out over time with a penny in there, from what I've seen. A buddy of mine tried this on a old textbook in college and the spine completely cracked after six months because the penny pushed the hinge too far open. I'd rather just use some book glue or take it to a real binder if it's a nice set.
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mason_foster68
Yep. Dimes work better, less binding stress.
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