Blue Impulse T-2 Japan Air Self-Defense Force Pin Badge Formation Flight Solo Aircraft 2 pcs Retro

Blue Impulse Japan Air Self-Defense Force Pin Badge Formation Flight Solo Aircraft Set of 2 Excellent Condition Retro

This item was purchased by my father-in-law, who was formerly in the Self-Defense Forces.
The formation flight pin is unopened.
Aircraft Model: T-2

Thank you for looking.