Hong Kong 1998 Nickel-Brass Five Dollar Coin
Currency Coin (Non-Gold) · Nickel-Brass (Standard base metal for circulation)
Purity: 0% Gold (Common Metal Alloy)

Type
Currency Coin (Non-Gold)
Purity
0% Gold (Common Metal Alloy)
Gold Type
Nickel-Brass (Standard base metal for circulation)
Weight
13.5 grams (Standard mint weight)
Description
The item is a standard 1998 Hong Kong 5-dollar circulation coin. Despite the prompt seeking gold analysis, this object is composed of a copper-nickel-plated-steel or nickel-brass alloy and contains no precious metal content. It features the numeral 5 in the center and the date 1998.
Key Features
Large '5' with incused lines, dual-language denomination, and distinctive thick decagon-shaped edge profile.
Color & Finish
Dull metallic silver-grey/tan with heavy oxidation and surface dings
Hallmarks & Stamps
No gold hallmarks; bears '5', '1998', 'FIVE DOLLARS' and Chinese '伍圓'
Dimensions Estimate
27 mm diameter; 3.3 mm thickness
Gemstones & Inlays
None
Clasp & Closure
Not applicable (solid coin)
Chain & Links
Reeded edge (milled) with indented groove around the center
Craftsmanship Details
Mass-produced industrial minting via hydraulic press for high-volume circulation.
Authentication Indicators
RED FLAG: This is not gold. The color is metallic grey, no gold hallmarks (like 18K or 750) exist, and the design corresponds to base metal currency.
Origin & Maker
Hong Kong Monetary Authority; Royal Mint (UK) or HK Mint
Era & Period
Contemporary (Post-Handover Hong Kong)
Age Estimate
Dated 1998 (26 years old)
Cultural Significance
Represents the monetary transition period of Hong Kong as a Special Administrative Region of China.
Condition Notes
Circulated/Good. Visible surface scratches, minor rim dings, and significant dark toning/tarnish.
Value Estimate
Face value (5 HKD) or approximately $0.65 USD. There is zero melt value for gold.
Care & Maintenance
No special care needed as it is a base metal coin; avoid acidic cleaners which can further damage the nickel patina.
Similar Items
Earlier Queen Elizabeth II Hong Kong 5 Dollar coins (scalloped or round) and the 1997 handover commemorative issues.
Interesting Facts
Following the 1997 handover of Hong Kong to China, the Bauhinia flower replaced the portrait of Queen Elizabeth II on these coins.