This ballot was sent from Nepal, I cant find anywhere online any absent voter cover. I am curious what do you think? Shouldn't this cover be stored somewhere with ballots? How did it end up in estate collection?
The images are too grainy to see anything. (add: edited photos better now.)
The point of an outer certifying envelopes and an inner ballot is to separate them after receipt and then count the now-anonymous ballots. Ballots would be retained for only a short amount of time - until they are certified and any challenge deadline passed, after which they would be destroyed. The envelopes might be kept for the same amount of time. No doubt retention laws differed from time to time and place to place. No doubt an election worker (or janitor charged with disposing of them) liked the foreign-origin envelope and salvaged it once the ballot had been removed. No jurisdiction would be storing ballots or envelopes after 60 years.
Add: the most commonly encountered ballot mailings are from WWII (dozens of them on ebay all the time), both the ballot-request mailing from the soldier and the ballot-return envelope, often saved for the APO postmarks.
Yes, as John says, that's the mailing envelop for the ballot which would typically have been put into another envelope which is the one that the vote counters see. The outer mailing envelope is much more interesting, though, if it's like this one all the way from Kathmandu! This one was for the Kennedy-Nixon election of 1960, as you must know.