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Grenada Postal Stationery Newspaper Wrapper with an Unknown SPECIMEN Overprint

Grenada Newspaper Wrappers

The first postal stationery newspaper wrappers were issued on 8 June 1886.

The last two newspaper wrappers were issued in 1957 or 1958. A total of just 16 different wrappers were issued in this period. Four during he reign of Queen Victoria. Two during the reign of King Edward VII. Two duing the reign of King George V. Four during the reign of King George VI. And two during the reign of Queen Elizabeth II.

Grenada Newspaper Wrapper with Specimen Overprint

Can you help with this SPECIMEN handstamp on a Grenada postal stationery newspaper wrapper?
Grenada 1957 1c green Newspaper Wrapper
Grenada 1957 1c green Newspaper Wrapper

Grenada 1957 newspaper wrapper Specimen Overprint
with SPECIMEN Overprint

A 1957/8 1c green Grenada newspaper wrapper with “SPECIMEN” handstamped partly across the indicium was offered on Ebay in November 2012 and again in January 2013. As far as I know the item was not sold. The handstamp was in black, sans serif type, 17mm wide and 2¾mm high.

This is the first and only time I have seen such a handstamp on a Grenada newspaper wrapper. I have not found any reference to this anywhere so far.

Is this a known handstamp for Grenada?

Is this item genuine?


The Postage Stamps, Envelopes, Wrappers, Post Cards and Telegraph Stamps of the British Colonies in the West Indies together with British Honduras and the Colonies in South America. The Philatelic Society, London. 1891
Grosser Ganzsachen-Katalog, by Dr Siegfried Ascher, 1928
Higgins & Gage World Postal Stationery Catalogue, 1966/1990

"Postal Stationery Newspaper Wrapper Catalogue", by Jan Kosniowski, published June 2019
Grenada occupies just over one page in a mammoth, 1,258 page, three volume, catalogue

The Postal History and Postage Stamps of Grenada, by Alfred Charlton, 1955