Just for posterity...
The amp is a Kustom K200-A1 head, dating to between January and June of 1968.
The cab is a 2X15, bass model 2-D 140 with what looks to be J.B. Lansing D 140F speakers.
The aluminum ports are lacquered, and have turned gold with age. They were originally silver, polished aluminum.
A non-musician picked it up at an estate sale, and couldn’t sell it fast enough after discovering it took up a lot of room. Some of the locals were lowballing him, he got disgruntled, and dropped his price on Craigslist. I bit, and told him that I would cherish it for the cool amp it is, and actually use it. I told him straight up, that his original asking price was fair, but he was too far from me to justify the risk, and expense...but when he dropped to where he did, I was comfortable with the gamble, and promised that I would never bother him again if anything was wrong with it. I came carrying cash, and didn’t waste too much of his time. I plugged it in, turned it on, listened to the caps embrace the electricity, turned it off, handed him the cash, packed it in my car, thanked him, offered him the remaining cash in my pocket($30.00...he declined), and I left.