1929 World Power Conference in Tokyo Participant Badges/1929年世界動力会議東京部会徽章

A world power conference was held in Tokyo from October 29 until November 7, 1929.
Badges were manufactured by Ando workshop in Tokyo.

1st variation (safety pin).

No.448

Size 36,9 mm.

Obverse

昭和四年 - 1929

世界動力會議東京部會 - World Power Conference Tokyo Subcommittee/Group

Ribbon

世界動力會議 - World Power Conference

 

Unnumbered.

Original case.

世界動力會議東京部會徽章 - World Power Conference Tokyo Subcommittee/Group Badge

 

2nd variation (magatama pin).

No.538 with a yellow bar.

Magatama (勾玉, less frequently 曲玉) are curved, comma-shaped beads that appeared in prehistoric Japan from the Final Jōmon period through the Kofun period, approximately 1000 BCE to the 6th century CE. The beads, also described as "jewels", were made of primitive stone and earthen materials in the early period, but by the end of the Kofun period were made almost exclusively of jade. Magatama originally served as decorative jewelry, but by the end of the Kofun period functioned as ceremonial and religious objects. Archaeological evidence suggests that magatama were produced in specific areas of Japan and were widely dispersed throughout the Japanese archipelago to the Southern Koreanic kingdoms via trade routes.​

 

No. 768 with a blue bar.

 

No. 1186

世界動力會議東京部會徽章 - World Power Conference Tokyo Subcommittee/Group Badge

 

No. 1323 with a green bar.

Interestingly edge of the case stamped with a number "670".