In Nördlingen Bavaria (where 1 Bayer. Pfund = 18. Ozt), Gold was 3.6x the Price of Platinum; Platinum was 4.3x the Price of Silver. The labor & profit to refine was ~ Fl 4.
c.January, 1851: 1 Troy Ounce Gold (Mkt) = Fl 50. / Thlr. 33.33 (USD$ 19.99)
c.January, 1851: 1 Troy Oz. Platinum (Mkt) = Fl 13.89 / Thlr. 9.26 ($ 5.55)
c.January, 1851: 1 Troy Oz. platina (Mkt) = Fl 10.17 / Thlr. 6.78 ($ 4.06)
c.January, 1851: 1 Troy Oz. Silver (mkt) = Fl 3.22 / Thlr. 2.15 ($ 1.29)
Citation: Allgemeine polytechnische Zeitung und Handlungs-Zeitung No. 4 (January 24 1851) p.
Luhme of Berlin exhibited Platinumware worth Thlr. 166.08 at The Great Exhibition of 1851, in London:
4 Platinum dishes and 6 similar crucibles. Moreover, even several smaller articles in related form.
Citation: Preis-Katalog Der Zur Londoner Industrie-Ausstellung Aus Dem Deutschen ...Great Exhibition (1851, London)
In Grove's Nitric Acid Batteries at Hildesheim, Platinum Foil was fully 87% of the total cost.
The Loth at 14.616 g. and 1⅓ Loth = 19.4875 g. for Thlr. 9:
1851: 1 Troy Oz. Platinum (Saxony: Semi-Mfg, Retail) = Thlr. 12.77 - 14.36
.... (£ 1.81 - 2.03)
1851: 1 Troy Oz. Platinum (UK: Semi-Mfg, Ret.) = Thlr. 14.12 (£ 2.00)
1852: 1 Troy Oz. Platinum (UK: Semi-Mfg, Ret.) = Thlr. 14.12 (£ 2.00)
In the drawing (Fig. 19) is indicated the battery is used in blasting of slate on October 26, 1851 in Hildesheim. It consisted of 9 Elements which together have 141 Square Zoll {Hanover?} of acting Platinum surface. {Where each Element has a Platinum Plate is 7.833 Square Zoll or 48.415 cm2}
No. 16 Cost for a Platinum Battery, such as the 9 Elements used in Hildesheim (19):
1) In Platinum: 1 Loth Platinum costs Thaler 6-7 and per Element on average,
1 1/3 Loth schwer, Thaler 8.-9., for 9 Platinum Elements ..... at Thlr. 9. = Thlr. 81.
2) 9 good porous cups ..................................................... at Sgr. 4./ea. = Thlr. 1.50
3) 9 Zinc cylinder, finished .............................................. at Sgr. 8./ea. = Thlr. 3.00
4) Combine with Hydrochloric acid ..................................................... = Thlr. 0.25
(NB: 1 Pfund Mercury = Thlr. 1.67)
5) 9.2 = 18 Pfund Nitric acid ............................................ at Sgr. 3./ea. = Thlr. 2.25
6) 6 Pfund Sulfuric acid ................................................... at Sgr. 1./ea. = Thlr. 0.25
7) 8 small brass bands ..................................................... at Sgr. 1./ea. = Thlr. 0.33
8) 2 clamps w/ screws ..................................................... at Sgr. 6./ea. = Thlr. 0.50
9) Labor on Platinum Foils, assembly, etc. ........................................... = Thlr. 3.92
Total Cost = Thlr. 93. (About Thlr. 100.?)
Citation: Notiz-Blatt des Architecten- und Ingenieur-Vereins für das ..., Vol. 1, Architekten- und Ingenieur-Verein für das Königreich Hannover (1851-2) p.82
Also reported in Austria, March 1854:
Citation: Zeitschrift, Vol. 6; Österreichischer Ingenieur- und Architekten-Verein (1854) p.126
(1854) Calculation of same 9-Element Battery in Saxony cost (Fr 41.11/ea.)
Uncertain, but given the Hanover Linie mentioned, a "surveyor's inch" is reasonably assumed here:
9 Platinum Plates = 141 Square Zoll (Surface) = 871.47 cm2
1 Platinum Plate = 15.67 Square Zoll (Surface) = 96.83 cm2 ; Plate = 48.415 cm2
German Platinum manufacturers/industry:
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