Germany, 1863

1863: 1 Troy Ounce (semi-mfg, whols.) = Thl 6.32 (USD$ 4.60 ; $ 6.68)
................................................................= Fl 12.82 (USD$ 4.81 ; $ 6.98)

1863: 1 Troy Ounce (refined, whols.) = Thl  (USD$ ; Greenback $ )
.............................................................= Fl (USD$ ; Greenback $ )

Assuming 1 Loth =14.616 g, from the German Manufacturer cost: 
1 Kg. Platinum, Unmfg. = Conv. Thlr. 255.43 / Fl. 447 = $ 176.79 ;  £ 36.984 ; Fr. 1,365.67

June, 1863: 1 Troy Ounce (Semi-Mfg, Trade) = Thl 8.37 ($ 5.7932)
June, 1863: 1 Ozt. (Semi-Mfg: Kg Rate) = Thl 7.945 ($ 5.50)

June, 1863: 1 Ozt. Platinum (Scrap, Bid) = Thl 6.10 ($ 4.22)

June, 1863: 1 Ozt. Pt (Labor, into Plate) = Thl 1.206 ($ 0.84)

W. C. Heraeus in Hanau in Frankfurt am Main, delivers Platinum Foil and Wire,  Thlr. 3.933 per Loth; at 2 Pfund, Thlr. 3.73 {per Loth}; and accepts Scrap Platinum in trade for Thlr. 2.87 per Loth; melting and pouring Platinum ingots, Thlr. 0.567 per Loth.

Citation: Der Zahnarzt, Volume 18,  No.4  Carl Wilhelm Ludwig Schmedicke (1863) p.96

 
Citation: Deutsche vierteljahrsschrift fuer zahnheilkunde, Volume 3 (1863) p.214


According to the circumstances, it may not be very significant, nevertheless in this way over 5 years accumulated  Thlr. 17 worth of Platinum, or per year Thlr 3.4.

 

{Galvanic Machine for tooth extractions} with four burners in Zinc-Carbon Thlr. 11, 
in Zinc-Platinum Thlr. 18