Instead of antiquity b /a product of high life?

[wasya]

I am interested in what subjects are not valued in antiquity , and for a long life ? Buy b /a commodity, because right now this does not produce. Or do only now made ​​in China with a little life.
When you see a rare thing, you see that it is not worn . So, will last for years to come .
First come to mind, Singer sewing machines . They are bought and sold so far. It is even possible to invest in Singer sewing machines . However, this product will not sell quickly .

What other rare items have such a property tricky ?
Is it possible to use such items for the investment?