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IM-SG-18a: Difference between revisions

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Created page with "{{Stamp |image= |country=Isle of Man |country-code=IM |catalogue=Stanley Gibbons |catalogue-number=18a |variant=Grey-brown border error |issue-title=Pictorial definitives |issue-date= |withdrawn-date=31 December 1978 (general withdrawal of the issue; see notes) |year= |face-value=3½p |subject=Port St Mary |stamp-type=Definitive |stamp-s..."
 
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== Related stamps ==
== Related stamps ==


* [[IM-SG-18]] — ordinary stamp
* [[IM-SG-12]] — ½p — [[wikipedia:en:Castletown, Isle of Man|Castletown]]
* [[IM-SG-13]] — 1p — [[wikipedia:en:Port Erin|Port Erin]]
* [[IM-SG-14]] — 1½p — [[wikipedia:en:Snaefell|Snaefell]]
* [[IM-SG-15]] — 2p — [[wikipedia:en:Laxey|Laxey]]
* [[IM-SG-16]] — 2½p — [[wikipedia:en:Tynwald Hill|Tynwald Hill]]
* [[IM-SG-17]] — 3p — [[wikipedia:en:Douglas, Isle of Man|Douglas Promenade]]
* [[IM-SG-17a]] — 3p — [[wikipedia:en:Douglas, Isle of Man|Douglas Promenade]] — Olive-bistre border error
* [[IM-SG-18]] — 3½p — [[wikipedia:en:Port St Mary|Port St Mary]]
* [[IM-SG-19]] — 4p — [[wikipedia:en:Fairy Bridge (Isle of Man)|Fairy Bridge]]
* [[IM-SG-20]] — 4½p — [[wikipedia:en:Tynwald Hill|Tynwald Hill]]
* [[IM-SG-21]] — 5p — [[wikipedia:en:Peel, Isle of Man|Peel]]
* [[IM-SG-22]] — 5½p — [[wikipedia:en:Douglas, Isle of Man|Douglas Promenade]]
* [[IM-SG-23]] — 6p — [[wikipedia:en:Cregneash|Cregneish]]
* [[IM-SG-24]] — 7p — [[wikipedia:en:Laxey|Laxey]]
* [[IM-SG-25]] — 7½p — [[wikipedia:en:Ramsey, Isle of Man|Ramsey Bay]]
* [[IM-SG-26]] — 8p — [[wikipedia:en:Ramsey, Isle of Man|Ramsey Bay]]
* [[IM-SG-27]] — 9p — [[wikipedia:en:Douglas, Isle of Man|Douglas Bay]]
* [[IM-SG-28]] — 10p — [[wikipedia:en:Manx cat|Manx cat]]
* [[IM-SG-29]] — 11p — [[wikipedia:en:Rushen Abbey#Monks' Bridge|Monk's Bridge, Ballasalla]]
* [[IM-SG-30]] — 13p — [[wikipedia:en:Derbyhaven|Derbyhaven]]


== References ==
== References ==


<references />
<references />

Latest revision as of 19:40, 16 October 2026

Stamp details
Stamp image No image uploaded
Identifier IM-SG-18a
Country Isle of Man
Country code IM
Catalogue Stanley Gibbons
Catalogue number 18a
Variant Grey-brown border error
Issue title Pictorial definitives
Date of issue
Withdrawal or invalidation date 31 December 1978 (general withdrawal of the issue; see notes)


Face value 3½p
Subject or design Port St Mary
Stamp type Definitive
Stamp subtype Country pictorial
Format Stamp
Designer or artist J. Nicholson
Printer Courvoisier
Printing process Photogravure
Colour Multicoloured; grey-brown border error
Dimensions
Perforation 11½
Watermark No watermark
Paper or gum Granite paper; matt, almost invisible gum
Other catalogue references
Associated FDC or issue pages
Notes Catalogue-listed border-colour error associated with printing (d), dated 29 July 1974. A separate release date for the error has not been established.

Image notice: Images on these pages may depict copyrighted stamp designs, cover artwork, text or photographs. Unless otherwise stated, they are scans of physical items in the collection of PhantomSteve. Rights in the depicted material remain with their respective rightsholders. See Copyrights.


SG 18a is the 3½p Port St Mary definitive with a grey-brown border. It is a separately catalogued colour error.[1]

The error border resembles that of the 2p Laxey stamp, SG 15. The catalogue also records intermediate shades, but excludes those from its error listings.[1]

The relevant printing is (d), dated 29 July 1974. This is the printing date recorded by the catalogue; no separate first day of sale is given for the error. It belongs to a later printing than the stamps originally available for the 5 July 1973 first day cover.[1]

The design is credited to J. Nicholson. Courvoisier printed the stamp by photogravure in multiple colours on granite paper without a watermark. Perforation is 11½, and sheets contain 50 stamps (5 × 10).[1]

Catalogue printing

The catalogue records the following printing.[1]

Catalogue printing Date Gum Inscribed year
(d) 29 July 1974 Matt, almost invisible gum 1973

Withdrawal

The catalogue records general withdrawal of the issue on 31 December 1978. The 3½p value in booklets remained on sale until 15 May 1979. The 3½p value was retained for use on postal orders until its final withdrawal on 31 December 1985. Those later arrangements concern the denomination; the catalogue does not establish continued availability of this error in booklets or for postal orders. These are withdrawal-from-sale dates; the cited entry does not give a date of postal invalidation.[1]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Stanley Gibbons.Channel Islands and Isle of Man 2022 Edition Stamp Catalogue(31st combined edition).Stanley Gibbons.2022.Section: Isle of Man — Independent postal administration.pp. 197–198.Catalogue system: Stanley Gibbons.Catalogue number(s): 18a.ISBN: 978-1-911304-89-0.Place of publication: Ringwood.