2 Heli Expo 98 Pins And Two 50th Anniversary Helicopter Association Pin Backs

This is a lot of two Heli-Expo '98 and two Helicopter Association International brass and enamel pin backs by GNP China.

These pinbacks are blue and white.

The Heli-Expo pin reads "Heli-Expo '98 Anaheim February 15-17".

The Helicopter Association pin reads "50th Anniversary Helicopter Association International 1948-1998".

The pins measure 1.25" x 1".

They are in very good pre-owned condition.