10 Rupees Kegalle

The Kegalle district series, of which this is one piece, forms part of Sri Lanka's nine-coin provincial circulation issue released in 2013 — each denomination honoring a different administrative district. Kegalle, situated in the Sabaragamuwa Province, is historically associated with rubber cultivation introduced under British colonial administration in the late 19th century, a crop that fundamentally reshaped the region's land use and labor demographics.

AISI 430 ferritic stainless steel was selected partly for its resistance to the humid tropical conditions that accelerate corrosion in conventional alloys.