![Bought these metal cups in Japan 10 yrs ago. Don't know the source, the metal or the care instructions but they're in a bad state. Can anyone identify how I go about Bought these metal cups in Japan 10 yrs ago. Don't know the source, the metal or the care instructions but they're in a bad state. Can anyone identify how I go about](https://i.redd.it/bought-these-metal-cups-in-japan-10-yrs-ago-dont-know-the-v0-9ebvn31eyzpb1.jpg?width=3024&format=pjpg&auto=webp&s=93894e2ba960b706433b6067c9782820165f5c3b)
Bought these metal cups in Japan 10 yrs ago. Don't know the source, the metal or the care instructions but they're in a bad state. Can anyone identify how I go about
![Nippon Sanso KK Stainless Steel Thermos Blue Nylon Strap 05608 Japan Oxygen Co ⋆ Academia Washington Irving Nippon Sanso KK Stainless Steel Thermos Blue Nylon Strap 05608 Japan Oxygen Co ⋆ Academia Washington Irving](https://i.ebayimg.com/images/g/VTIAAOSwoy1j86WN/s-l1600.jpg)
Nippon Sanso KK Stainless Steel Thermos Blue Nylon Strap 05608 Japan Oxygen Co ⋆ Academia Washington Irving
![Amazon.com: WETOWETO Coffee Mug with Handle, 14oz Insulated Stainless Steel Reusable Coffee Cup, Double Wall Coffee Travel Mug, Powder Coated Black : Home & Kitchen Amazon.com: WETOWETO Coffee Mug with Handle, 14oz Insulated Stainless Steel Reusable Coffee Cup, Double Wall Coffee Travel Mug, Powder Coated Black : Home & Kitchen](https://m.media-amazon.com/images/I/81Z-Y+en63L.jpg)