Nikon celebrated their 80th anniversary in 1997.
On that event, all employee were given a comemorative desk loupe.

Anniversary desk loupe in the complimentary package.

Inside of the package.
Campare with NHS-con Tokyo complimentary desk loupe
given to all the participants.

At the same year, Canon cereblated thier 60th anniversary.
They gave all employee a set of yukata (summer kimono).

Yukata photo by courtesy of Gammo and Marumi.