I purchased above two items at a public auction in 2006, they were described as "wrappers overprinted SPECIMEN which were affixed to a
placard to inform the Indo-China public of their existance. Ex Wallberg collection."
The 2c wrapper is 52mm x 299mm and the 3c is 52mm x 302mm. Both of them are glued to another paper.
When I asked the auctioneers for additional information all they could tell me was "This information was written on a note included
by the vendor, which we believe to be correct since he was an avid collector of this area."
Over the next ten years I made many enquiries about this item to no avail.
Then at a meeting of The Postal Stationery Society in March 2016 James Bendon
displayed a sheet with postal stationery and stamps as shown in the illustration below.
This sheet was issued by the Post & Telegraph Administration of Indo-China in 1889 to be displayed in their post offices.
The sheet size is about 620mm x 775mm.
So finally I had confirmation that these did come from Indo-China and could see how they were originally shown. The sheet only has three of the issued wrappers the 1c, 2c and 3c. In addition to these there were two other wrappers issued, a 4c and a 5c.
FRENCH COLONIES NEWSPAPER WRAPPERS BIBLIOGRAPHY
Catalogue Prix-Courant de Timbres-Postes, by J B Moens, 1893
Catalogue des Entiers Postaux de France d'Algérie des Colonies Française, Association del Collectionneurs d’Entiers Postaux (ACEP), 1927
Grosser Ganzsachen-Katalog, by Dr Siegfried Ascher, 1928
Catalogue des Entiers Postaux de France d'Algérie des Colonies Française, Association del Collectionneurs d’Entiers Postaux (ACEP), 1949
Higgins & Gage World Postal Stationery Catalogue, 1966/1990