alt_sirius: (Dunno)
Sirius Black ([personal profile] alt_sirius) wrote in [personal profile] alt_severus 2013-08-23 01:44 am (UTC)

Well, it was developed in about 1625 or something similar.

It's been copied so many times, though, I was sure somewhere along the line it had been updated for modern units of measure.

There's a set of apothecaries' weights in the shop. I'll pop down for them before I come back.

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