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Before and after - experimenting with adding extra shelving on the Billy Bookcase : r/MangaCollectors
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Spare Hardware Parts Billy Shelf Pins (Compatible with IKEA Part #131372) (Pack of 12) : Amazon.co.uk: DIY & Tools
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Spare Hardware Parts Billy Shelf Pins (Compatible with IKEA Part #131372) (Pack of 12) : Amazon.co.uk: DIY & Tools
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