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Harrow Perforated Stamps

 
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United Kingdom
271 Posts
Posted 10/08/2020   7:37 pm  Show Profile Bookmark this topic Add Noocassel to your friends list Get a Link to this Message
I need a small block of Harrow perforated stamps to illustrate the different types of perforation and seperations in my "Philatelic terms and phrases collection. could anyone tell me the Stanley Gibbons catalogue numbers of anyrelatively inexpensive Harrow perforated stamps, please.
Until I looked in the archives of Stamp community I hadn't seen any examples of Harrow perforation. would I be right in thinking that 19th century stamps that look as though they have been perforated by a hungry mouse are probably examples of Harrow perforations?
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Pillar Of The Community
Canada
1033 Posts
Posted 10/08/2020   11:15 pm  Show Profile Bookmark this reply Add No1philatelist to your friends list  Get a Link to this Reply
"Perforated by a hungry mouse" would usualy indicate a line perf. Comb perfs are regular used today.

Definition taken from www- Harrow perforated A means of perforating wholesheets at asinglestroke.

Edit: changed perforation to perforated
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Edited by No1philatelist - 10/08/2020 11:22 pm
Valued Member
Canada
135 Posts
Posted 10/09/2020   12:10 am  Show Profile Bookmark this reply Add j2186 to your friends list  Get a Link to this Reply
As mentioned, in Harrow perforation, the whole sheet is done in one stroke. According to "Stamp Collector's Handbook", by Samuel Grossman (13th printing, Feb 1973):

"HARROW: All the perforations are evenly balanced throughout the entire sheet as well as in all the corners."

In comb perforation, there might be slight irregularities where the combs meet. However, perfectly applied comb perforation would look just like Harrow perforation, so this only tells if it not Harrow, but not if it is Harrow.

I would guess that Harrow is unusual, maybe only on stamps issued in small sheetlets.

Jan
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United Kingdom
271 Posts
Posted 10/09/2020   05:08 am  Show Profile Bookmark this reply Add Noocassel to your friends list  Get a Link to this Reply
Thank you for your responses. Using Hornungs Illustrated encyclopedia of Stamp collecting. Hamlyn 1970. I had arrived at the same solution. looking through the archive of the Stamp production process forum. Someone showed a sheet of stamps from an Indian feudatory state (Bhopal?) that were supposed to be Harrow perforated, There some perfs in the lines were visibly out of line. I wonder whether he was mistaken in thinking the perfs were Harrow perfs and they had been done by a line perforation.
I have found two photos of Czech miniature sheets done by Harrow perf and will probably have to discover a catalogue number for these and get one for my collection.
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Posted 10/09/2020   08:16 am  Show Profile Bookmark this reply Add jogil to your friends list  Get a Link to this Reply
souvenir and miniature sheets
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Valued Member
United Kingdom
271 Posts
Posted 10/09/2020   5:47 pm  Show Profile Bookmark this reply Add Noocassel to your friends list  Get a Link to this Reply
Jogil would you be able to tell me the catalogue numbers of any miniature sheets that were definitely Harrow perf'ed, please.
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