MODERN
PRECANCEL ERRORS
There does
not appear to be a large number of overprinting errors related to modern
precancels and many that do exist seem to be very scarce or rare. For example for all KG VI and QE II issues
there are only three doubles and one triple in the bar styles V,W,X and Y. One is the one cent green coil from 1937, V-238-D
and another KGVI, the X-255-D 5 cent blue War issue; the others are the 1973
Pearson 6 cent caricature: Y-591-D and
Y-591-T this latter being a new find just prior to the publication of the 6th
edition. It was listed and sold as a
double but on closer inspection was clearly an unlisted triple.
A total of
456 MOON items are listed in the CPCC.
There were doubles and inverts in the older issues but there is only one
known double in the KGVI era, Toronto 15-249-D, the green one cent war issue
from 1942. I assume that this lack
of doubles in this era indicates more sophisticated and automated printing
equipment which relies much less on human intervention, however I have no specific
details on equipment used during this time period and whether it was more
modern and reliable than used previously.
Chapter 2 of the CPCH is interesting but of little help regarding
equipment used particularly in more recent years. This lack of errors may also be a result of
improved quality control though the availability of other types of errors
indicates that QA was far from perfect.
Chapter 2 of the CPCH hints that the relatively large numbers of doubles
that are available from older issues, in particular Admirals, were the result
of an active policy by the Agency to create these items for collectors. I do not believe this to be the case since
many of the doubles and combinations etc are clearly a result of mis-feeding of
sheets which was fairly common in paper printing. Additionally, if it had been a successful
marketing plan to sell more stamps, why would it suddenly stop? What is more likely is that under different
circumstances these “errors” might have been thrown in the trash by the Post
Office but they found a market and decided to sell the “errors”.
Most modern
precancel errors relate to other manufacturing issues rather than the
precanceling process.
Types of
known modern errors on precancelled stamps are:
Misperforated stamps [horizontal and
vertical]
Colour shifts and partial colour
shifts
Pre-print paper crease
During-print paper crease
Offsets on gum: both precancel offsets
and stamp offsets
Tagging errors: one bar tag, tag
missing
Imperf top margin
Warning legend missing
Warning legend printed on stamps not
selvage
Printed on gum side
Although modern
PC errors are mostly very scarce to unique, a few being more common such as
X-326 2 cent green misperf which is reasonably easy to acquire and is known on
cover.
Also the
George VI Vancouver 6-249 can be found misperf but is much scarcer.
Tagging
errors can be found and are fairly easy to acquire as single stamps but as
multiples they are scarcer and are priced accordingly.
Color shifts
and partial color shifts can be found on the Floral definitives of 1977:
Also on Y-591
Pearson 6 cent and Y-714 Parliament 12 cent as shown below. Only one sheet of each was found.
Precancel
offsets where the PC overprint is printed on reverse on the gum side of a stamp
are not common but can be found:
Montreal 4-119-ID with Kitchener style 1 double invert on gum
I know of
only one example of a precancelled stamp, X-338, with the stamp [without
precancel] offset on the reverse and it is shown below:
The rarest
and probably most important error is the Y 705 one cent Gentian floral
definitive printed on the gummed side.
Only one sheet was produced and only four corner blocks of four appear
to have survived according to Canada’s leading dealer in modern errors. What happened to the other 84 stamps is a
mystery. Perhaps they will turn up one
day.
Printed
on gum side
Another rare
item is the misperf and imperf at top margin Karsh 329 5 cent blue. Only two or three sheets are known and have
been broken down into upper warning strip block of 20 including plate block and
then various other combinations of misperforates including singles and blocks
of various sizes. One warning strip has
survived intact; others may have been cut up for resale since Unitrade lists a
single at $500.
There are three
sheets of Borden 3 cent brown catalogue number Y-588 which are known without
warning legend at left. The PC print is shifted left 7 mm and the RH
warning is not in the selvage but on the RH column of stamps. It would be
interesting to find an example on cover with part of the warning strip on the
stamp. I have a pane of 100 showing both
errors and below is a scan of the top three rows.
I personally
enjoy these minor and major errors. They
are rare, visually arresting and have survived against all odds. If any collector has additional errors to
share I will gladly add to the article.