DP20 - Rainbow Colour trials of May 1840

Note voided corner and no corner letters
for a larger scan click here
for an example in red click here

Second trial plate of twelve stamps (3x4) below

Image source British Postal Museum from the R M Phillips Collection. Vol VIII Pg 3

More info on the 1840 Rainbow Colour Trials

For even more Rainbow Trials see Vol VIII of the R M Phillips Collection

For the DP43 2d small plate trial go here

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