Product - see also detailed description
Registered cover from Kinshasa to Lausanne.
Mixed franking with pair of 10k King Congo definitives (SG 691)
9k King Zaire definitive (SG804) and 0.04z Inga Dam commemorative (SG811)
Kinshasa 2 postmark 20.3.73 on reverse - no arrival mark.
Red printed registered label with rubber-stamped KINSHASA 1 identifier.