Registration label

Registration labels are used on registered mail. They carry a control number and probably according to UPU rules, include a large "R" and the office of origin. There are many styles that have changed and continue to change over time.

Domestic versions need not follow UPU rules and may be different as in the case of Russia. There are also versions that are just handstamped on mail and data is filled in by hand. There are also registration stamps that look like registration labels used to pay the registration fee and are used the same way as the labels.

The labels have been provisionally used as stamps at times, like in New Guinea c.1915 and in [[Iran] during the 19th Century.

Dates for the labels belwo are mostly unknown.  File:Cartagena reg label.jpg|Cartagena, Colombia File:Asuncion reg label.jpg|Asuncion, Paraguay File:Portugal reg label.jpg|Lisboa (Lisbon), Portugal File:Thailand reg label.jpg|Phrae, Thailand File:NewGuinea GRI reg label.jpg|1915 New Guinea 3d surcharge stamp 