Although this issue was authorized by the Ivory Coast postal administration, virtually the whole issue was not sold in the Ivory Coast, but only distributed by the Ivory Coast philatelic agency Impressor S.A. during this year for distribution onto the philatelic market. Most likely the main reason this agencies contract with this country was so short lived as you can see in 2006 they were no longer used (except for 2 stamps) by the Ivory Coast ever again.
The values from this series are known on commercial mail.