Overview
Sun Yat-sen Founding Commemorative Double-Flag 20-Cent Silver Coin: identification and appraisal guide
Photograph the coin and packaging for Sun Yat-sen Founding Commemorative Double-Flag 20-Cent Silver Coin together before taking separate close-ups of the visible details. Use the opening set to document the exact product name and visible markings on the coin, without changing the item's current state.
Identification details
- Product name: Sun Yat-sen Founding Commemorative Double-Flag 20-Cent Silver Coin
- Category: coin
- Marks and details to photograph: the denomination, mint, date, type, weight and edge
For this coin, compare the exact product name and the visible markings on the coin with the holder, capsule, certificate, invoice and other matching packaging. That comparison should support the name Sun Yat-sen Founding Commemorative Double-Flag 20-Cent Silver Coin.
Photographs and condition
Use a straight-on view when photographing obverse, reverse, edge, denomination, date, mint marks, weight, diameter, holder and certificate. Use steady focus and enough surrounding area to locate each detail.
Without cleaning anything, photograph surface wear, patina, marks, edge, strike and any holder or grading label. Record the condition of the item and packaging as two related checks.
Storage, accessories and handover
Until collection is arranged, leave each coin in its current holder or capsule. Do not clean, polish or test the surface, and handle it only by the edge when necessary.
Keep each coin with its holder, certificate, invoice and provenance documents.


Related items and collections
Appraisal services and practical guides
- Sun Yat-sen Memento Silver Dollars
- Silver Dollars, Coins and Stamps Appraisal Checks
- Yuan Shikai Dollars and Mexican Eagle Dollars: Varieties, Edges and Mint Data
To begin a coin appraisal, contact Hong Kang on WhatsApp, or call +852 9453 0784. Include the item, packaging and relevant paperwork in the photos.
For collection planning, show the obverse, reverse, edge, date, denomination, weight and holder, the quantity and the location. Keep the coin protected with the holder, capsule, certificate, invoice and other matching packaging.