You can redeem the face value of commemorative/numismatic notes and coins at any commercial bank in Singapore, over the counter. Do note that cash deposit machines are not calibrated to accept such currencies, which are one-time commemorative issues.

For commemorative/numismatic coins, you may approach either of the following organisations:

• Certis CISCO Secure Logistics Pte Ltd (CSL) , MAS' appointed Circulation Coins Operator and Manager (CCOM).
• The Singapore Mint .

More information on the redemption of commemorative/numismatic currency can be found here.