1862 and 1863 Issues
The six pence denomination on unwatermarked paper was used for a series of perforation trials that likely took place in 1866. E.D. Bacon in his book "Grenada" quotes Miss Stewart, who perforated all of the stamps for Perkins, Bacon & Co. , as never having used the machine with 11 to 11.5 perforations until 1866. It is not known where the sheets of unwatermarked paper came from as by 1866 the paper routinely being used had a star watermark.
These stamps are known only in unused condition and none are believed to have been shipped to Antigua. Each exists in fewer than five examples.
In addition to the six pence, two examples of the one penny on paper watermarked star are reported with similar trial perforations. Each is unique.
Six Pence Trial Perforations
|perforated 11 by 11.5|
|perforated 11 by 11.5 by 11 by 15|
|perforated 14 by 14.5 by 11.5 by 14.5|
|perforated 15.5 by 11.5 by 14.5 by 15.5|
One Penny Trial Perforations
|perforated 11.5 by 14
(the other reported example of trial perforations on 1d. is perforated 11.5 all around, no picture available)