I have a series of 8 Yemen stamps such as these examples from the 1970 Philympia in London. Are these cinderella stamps? Can't find them in Scott. Can anyone tell me anything about them? Value?
Thanks.
These are listed in the Appendix after Yemen in SG. SG prefaces the appendix with this:
"The following stamps have either been issued in excess of postal needs or have not been available to the public in reasonable quantities at face value. Such stamps may later be given full listing if there is evidence of regular postal needs."