New, Unused Showa Retro / Rare Aluminum Lunch Box - Book Style With Chopstick Case and Side Dish Container Manufacturer: Teinen Kogyo Model: BDN6N Product Name: New Calorie Lunch Box Size: L (Large) Outer Dimensions: 210 x 161 x 38mm Rice Compartment: 570cc Side Dish Container: 290cc This is a set of a Showa retro-style anodized aluminum lunch box and a chopstick case. It also includes a side dish container. Teinen Kogyo was a specialized lunch box manufacturer. As a top manufacturer, it flourished about 50 years ago. Due to changes in the times, now... This lunch box is a simple and orthodox representation of Showa-era lunch boxes, and everyone used them.