What tins are collectable?

Could you elaborate on the types of tins that are considered collectable? Are we referring to vintage food cans, historical military ration tins, or perhaps decorative tins from a particular era or brand? Are there any specific markings, designs, or conditions that make a tin more desirable to collectors? Additionally, what are the factors that determine the value of a collectable tin, such as rarity, condition, or historical significance? Understanding these details would help clarify the scope of this inquiry and provide a more comprehensive answer.