These are all First Day Covers with commemorative stamps for the First Day of Issue from the UNITED NATIONS.

The unadressed envelopes have BLOCKS OF FOUR stamps with margins, that many have the United Nations Logo and date of that issue. Then there are envelopes with written addresses from the 1950's with blocks of 4 stamps and some from the 1960's with single stamps on them. Noted a few envelopes with two stamps on them, so a complete mixture.

Massive value when originally purchased. Each cover measures 16.5 cm x 9 cm.

Each envelope has a different value over many covers to complete the set issued that day, appears complete but may be an odd cover missing. 

Dated between 1950's and 1980s.

The majority of the covers have the UNITED NATIONS postmark and First Day slogan postmarked in either NEW YORK

or GENEVA. 

Please look at the pictures