A "century-plus" celebration the 114th anniversary of the founding of Wiss Jewelers-will be held tomorrow by the Firm's four stores in East Orange, Montclair, Short Hills and Newark.

Wiss was established in 1848 by Jacob Wiss, Swiss artisan, in a little shop in what was then called Library Court, the site of the present Prudential building.

In 1906 the store was moved to its present location at 665 Broad St., where a remodeling program was completed recently.