1838: 1 Troy Oz. Platinum (manufactured, whols./ret.) ~ £ 1.45 (USD$ 7.07)
The so-called "blowpipe spoon" listed in Griffin (1838) contained approximately 2.15 grams of Platinum.
The so-called "blowpipe spoon" listed in Griffin (1838) contained approximately 2.15 grams of Platinum.
Citation: Chemical recreations: a compendium of experimental chemistry; John Joseph Griffin (1838) p.86
1877: 1 Troy Oz. Platinum (manufactured, whols./ret.) ~ £ 2.40
Smaller, make-shift "spoons" were contrived, perhaps to a weight as low as 1.2 grams. A proper Platinum Spoon w/cover cost 8s.; approximate weight therefore ~ 5.18 grams
1891/2 : 1 Troy Oz. Platinum (semi-mfg, foil, whols./ret.) = USD$ 14.
1891/2: 1 Troy Oz. Platinum (semi-mfg, foil, whols./ret.) = USD$ 20.22
1891: Spoon, estimated 1.54 - 6.15 grams
1891/2: 1 Troy Oz. Platinum (semi-mfg, foil, whols./ret.) = USD$ 20.22
1891: Spoon, estimated 1.54 - 6.15 grams
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