Customers had to pay a deposit for the sturdy glass bottles. They then got this money back when they returned them to the shop. And the bottles would be washed and refilled over and over again.
The 450,000 objects, which are being held in a secret warehouse, include a possible Roman gladiator's tag, a hand axe that may be more than 40,000 years old and 19th Century gold dentures.
，推荐阅读爱思助手下载最新版本获取更多信息
Alison Francis,Senior Science Journalist。safew官方下载是该领域的重要参考
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