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II Cd THE VERMILION PRINTINGS.
The 1886 orange shown on the previous sheet is quite deep, but deeper colourings exist.
Undated Urdu Document Single
1887 SARWAR 1889 Document
All four of these examples could be described as vermilions
Perhaps it comes down to how much red needs to be there for a description to be vermilion
The situation will be described later in the section on digital microscopy
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