See here:
http://www.captain-philatelie.fr/Ti...uxParis.htmlETA:
A Google Translate effort from another site:
Quote:
The transport of postal parcels within Paris was provided by three successive concessionary services.
- The Compagnie Générale des Trsnports Parisiens par le Materiel des Omnibus, created on October 17, 1878
- The Company of National Messengers. Its first stamp was issued in 1886.
- The Paris Postal Parcel Service for Paris, created on September 1, 1890.
The stamps were divided into three parts:
- on the left: the stub, had to be given to the recipient
- in the middle: the receipt, had to be kept by the sender
- on the right, the stamp, it materialized the postage and possible additional costs
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https://timbresetlettres.blogspot.c...-paris.html"]
Further additions:
Maury lists these as
timbre à taxe réduite pour colis réclame and yours are ##49-51, from 1919. You have a full set of the major numbers. There is also a rose version of #50, catalogued as #50a. (The 3-part reference, above, does not apply to your stamps.)