Vintage Partagas Churchills?

I know I've posted this thread on other sites, but most of them seem "quiet" lately so I thought I'd post it on here too. These are my friends and are, well, amazing!
Can anyone pin help me pin down a year/ age, and potential value of these cigars for insurance purposes please? They are in MINT condition and from what I've learned as a relative noob, they are from the late 60's-early 70's.






Thanks, Carl.