The Heil Catalogue of 1903/4 identifies weight-volume ratios and 'manufacturing cost' for many refined Platinum products.
Unless wages were suddenly rising or technology improving, this estimation for the 'manufacturing cost' likely informs other proximate years.
"Supposing the list price to be $1.25 per gram" in 1903/4, the unmanufactured Platinum price is USD$ 38.88. (The prices of ordinary, unrefined ingot fell to $18.50 for all 1904. Ingot platina did not reach $38./oz. until 1906/7, briefly. Obviously, NY ingot price was neither "list" nor "market price" in catalogues.)
September, 1903: 1 Troy Ounce Platinum (ingot, 85%, market) = USD$ 19.
Sept. 1903/4: 1 Troy Ounce Platinum (semi-mfg, retail) = USD$ 34.21 - 38.88
1903/4: 1 Troy Ounce Silver (market) = USD$ 0.5288
1903/4: 1 Troy Ounce Silver (pure, retail) = USD$ 2.18
Unless wages were suddenly rising or technology improving, this estimation for the 'manufacturing cost' likely informs other proximate years.
"Supposing the list price to be $1.25 per gram" in 1903/4, the unmanufactured Platinum price is USD$ 38.88. (The prices of ordinary, unrefined ingot fell to $18.50 for all 1904. Ingot platina did not reach $38./oz. until 1906/7, briefly. Obviously, NY ingot price was neither "list" nor "market price" in catalogues.)
September, 1903: 1 Troy Ounce Platinum (ingot, 85%, market) = USD$ 19.
Sept. 1903/4: 1 Troy Ounce Platinum (semi-mfg, retail) = USD$ 34.21 - 38.88
1903/4: 1 Troy Ounce Silver (market) = USD$ 0.5288
1903/4: 1 Troy Ounce Silver (pure, retail) = USD$ 2.18
1903/4:
The trade price of allegedly pure Platinum foil fell -13.8% in 1903.
1902: 1 Troy Ounce Platinum (semi-mfg, Trade) = USD$ 27.50
1903: 1 Troy Ounce platina (Russian ore, Spot) = USD$ 13.85
1903: 1 Troy Ounce Platinum (semi-mfg, Trade) ~ USD$ 23.71
Citation: Dental Forum: an independent journal devoted to the discussion ..., Vols. 1-2 (1903) p.47
Iridio-Platinum used by dentists, c.1906/7
Citation: Mines register: successor to the Mines handbook and the Copper handbook... Ed. Horace Jared Stevens et al. (1904) p.609
1902: 1 Troy Ounce Platinum (semi-mfg, Trade) = USD$ 27.50
1903: 1 Troy Ounce platina (Russian ore, Spot) = USD$ 13.85
1903: 1 Troy Ounce Platinum (semi-mfg, Trade) ~ USD$ 23.71
Citation: Dental Forum: an independent journal devoted to the discussion ..., Vols. 1-2 (1903) p.47
Iridio-Platinum used by dentists, c.1906/7
Citation: Mines register: successor to the Mines handbook and the Copper handbook... Ed. Horace Jared Stevens et al. (1904) p.609
1901-14: Spot Prices for Russian platina, in Russia
1903: 1 Troy Ounce platina (Russian ore, Spot) = USD$ 13.85
Citation: Bulletin of the Pan American Union, Vol. 45 (1917) p.618
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