Sadly, accordions are not so much like wine or cheese as violins are. They definitely do not get better with age. And they do not get better when they are not used either, so an old box that has been sat for a while is not going to be in the best condition. Unfortunately, these old boxes, despite their amazing designs and striking sounds, are simply not up to scratch compared with a modern box - the reeds are slower to sound, the keys are harder to press, the buttons less responsive and the bellows less airtight. And the older keyboards are frankly lethal if you try and slide. I have a bit of a soft spot for these lovely boxes, but that is certainly not the general consensus. An old, basic model like that with only one coupler will not have been the best box in the first place, so will be worth very little. Sorry to be the bearer of bad news.
