This used book that I bought for 12£ on the internet was apparently previously bought from Oxfam for 1.99£ - eviltoast
  • BearOfaTime@lemm.ee
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    6 months ago

    Our local shop has a database of values.

    Granted, it’s not perfect, but I would assume since they have one it’s a publicly traded commodity (that is someone maintains a DB and sells it to such organizations).