A group of 4 single weight airmail covers to Germany all franked with various combinations of the 1964-1966 Provincial Flowers Issue, the 1964 Quebec Conference Issue and 1967 Centennial issue, all paying the 15c airmail rate. Two covers with "help crippled children seals on back, and one with torn back. Otherwise very fine.
Est $18.
To gain a better understanding of what I consider in valuing covers, you might find it useful to read the blog post here.
