On Platina.
April 3, 2014
Germany, 1872
1872: 1 Troy Ounce Platinum (Mfg, Bulk) =
ℳ
18.66 (
USD$ 6.672
)
Citation:
Handbuch der chemischen Technologie: Neue Folge,
Vol. 12; Georges Lunge et al. (1903) p.785
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