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Around 1850, photos were produced which were actually weak negatives on glass but, when backed with a dark material or black paint, appeared as normal positive images: these were ambrotypes.
Both ambrotypes and daguerreotypes can be found in maroon ‘leather’ cases or highly ornate Union Cases made from a shiny and brittle thermoplastic material.
By the late 1850s the carte de visite appeared, a small photograph pasted onto a standard sized mount measuring approximately 4.25″ x 2.5″ (108mm x 63mm).
This was a much cheaper process and allowed copies to be taken from a negative.
The mystique of steel caused the British cycle industry to be slow to adopt newfangled materials such as aluminum, and many British cyclists believed, even well into the 1960's, that steel rims, for instance, were superior to aluminum ones.These days, this seems laughable..if you look at an older Dunlop steel rim, you'll find a very respectable, well-made product.The fact that Raleigh 3-speeds are made of steel shouldn't fool you into thinking that these bikes were cheap or inferior in any way..were not..were the finest utility bicycles money could buy.Suddenly photography was available to the masses as well as the gentry and family albums became a must for most Victorian families.From 1866, the carte de visite was joined by the larger format cabinet card photo which was pasted onto a standard mount measuring approximately 6.5 “x 4.25″ (155mm x 110mm).