I obtained these nearly 30 years ago through official channels, but I have absolutely no memory of the details. I seem to recall they were used on the 111 series, but I'm not certain. ■Enamel Front: Car 3 Back: Car 7 Size: 15 cm square ■Plastic (Large) Front: Car 4 Back: Car 6 Size: 15 cm square ■Plastic (Small) Front: Car 6 Back: Blank Size: 9 cm square They have been stored in a drawer at my parents' house for many years, so the storage condition is good. However, please be aware that these were originally used in actual service, so there may be scratches, rust, and dirt.