A while back I bought an old binder full of Pre-Embargo (and a few Post-Embargo) bands all nicely displayed. Below are the 20 Pages from that binder for your perusal. Some are a bit blurry, I think the plastic sheaths the bands are sitting in caused that effect. Otherwise, enjoy. There's some really interesting bands, a lot of one offs or private label examples too.
Bonus. 1960's/70's Spanish Distributor Pamphlet. EL_Habano-PrintReadyV2.pdf