USA, 1856: NYC Chemists' Catalogues (J.H. Luhme)

May 1856:
Luhme was a German manufacturer/importer, and appears to have offered the lowest prices for Grove's batteries in the mid-1850s.

1856: 1 Ozt. platina (CA Ore, ) = $ 5.0
1856: 1 Troy Oz. "Platina"? (Pt-Ag Alloy? Scrap, Wholsale/Retail) = $ 6.0
1856: 1 Ozt. "Platina" (Pt-Ag Alloy? Foil, Whols/Ret.) = $8.
1856: 1 Ozt.  Platinum (Sponge, Whols/Ret.) = $ 12.
1856: 1 Ozt. Platinum (Refined, Semi-Mfg, Whols/Ret.) = $12.

1856: 1 Ozt. Iridosmine (Ore, Whols./Ret) = $ 8.
1856: 1 Ozt. Iridium (Refined Whols./Ret) = $ 48.

1856: 1 Ozt. Palladium (Pd-Ag Alloy?) = $ 12.

1856: 1 Ozt. Silver (Pure) = $ ~3.30
1856: 1 Ozt. Silver Foil (.999) = $ 5.
1856: 1 Ozt. Gold (.999) = $ 24.

Citation: Descriptive catalogue of chemical apparatus, chemicals and pure reagents (1856 Luhme Catalogue, P.14)

Citation: General Descriptive Catalogue of chemical, pharmaceutical, and physical apparatus, meteorological and mathematical instruments etc. etc. for sale at the affixed prices by J.F. Luhme & Co. No. 556 Broadway (1857 Luhme Catalogue, P.19)


Chilton's Catalogue, 1855:

In the 1856 Catalogue, the 1848 Grove's Battery Price appears to be the same (by size & #.) Platinum prices are identical to the 1848 catalogue. 

Vol. 2, p.58, under Miscellaneous
"1197 Platina wire, per ounce, $10; per dwt., 0.75"
  
1856: 1 Ozt. Platinum (refined, US whols./ret.) = $ 10. - 15.

1856: 1 Ozt. "Platina" (Pt-Ag Alloy?, Trade) = $ 7.50

Citation: The Forcep: A Journal Devoted to the Advancement of Dental Science, Vol. 1 No.3 (1856)



Citation: Citation: Pike's illustrated descriptive catalogue of optical, mathematical and ... Benjamin Pike, Benjamin Pike (1856)

c.February 1856: 1 Ozt. Gold (CA: Spot, Dust) = $ 17.