This is the complete set of 4 airmail stamps from 1987 People's Republic of Congo featuring various butterflies, Scott #'s C-378 - C381, mint never hinged.     All shipments are in cardstock mailers and packaged as best as possible for protection.  Shipping costs within Canada $1.94, to the U.S.A. $3.19, to other worldwide destinations $6.39.  No additional charges for multiple purchases...please wait for invoice.  Additional shipping requests such as registration, tracking, etc. are at buyers request and expense.