I am getting old
The Carry Cool did come out in the early-mid 70's but I don't remember seeing them in colors other than white but then they maybe only sold white ones in Canada. That was about the time a lot of manfacturers like GE, Emerson, Admiral, Westinhouse all brought out small room airconditioners in force. I was working at a Woolco back east then and on those hot summer nights we'd have people coming in till 10pm when we closed picking them up like no tomorrow and they'd sell out. Pricewise they and the others were still around $200 Cdn at the time which wasn't exactly cheap for the era but now you can pick up a small Sunbeam or Danby for less than $100 which is really cheap considering. Trouble with buying a used one is getting its freon recharged, can't be done anymore legally that I know of and it would be damaged using the newer type freons probably..
But better than the GE Carry Cool, I had a little window airconditioner 5000 BTU made by a company in Jackson MI called Heat Controller. The unit itself was split in the middle, joined only by a small box tube in the bottom right corner which allowed you to slide your window vertically or horizontally between the two portions, that kept the compressor outside, much like a mini-split system today, and boy it was quiet.. You can still find them around here and there but again the freon recharge if needed is gonna be a problem.