The De La
Rue Ink Recipe Stamps
This is an an example of a early 1870s De La Rue Ink Trial Stamp in Purple Brown. This stamp was used by De La Rue for ink trials and is found attached to the De La Rue ink recipe register. De La Rue maintained a register of "'ink recipes" of each new ink recipe prepared and used. The ingredients of the ink and mixing instructions, if any, were noted on the recipes and a printed example from the final ink trial after the ink and color had been approved was attached to it. This was usually a single or a block of four of the ink trial stamp or a blank. Below are two examples of the stamps as they appeared on the ledger page. One example is of the Queen Victoria Dummy Stamp as shown in detail above. In this case it is a block of four representing a recipe for Chrome Yellow. The other example is typical of the De La Rue label design that was also used.
Queen Victoria Dummy Stamp design
Example of the De La Rue "label"
design (size reduced)
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