This guide publishes modeled United States dollar values for regular-strike coins of Australia, Canada and Mexico across the PCGS 1 to 70 grading scale. It is a reference, not an offer to buy or sell.
How values are built
- Sources. Values are anchored to published market data from PCGS CoinFacts, Heritage Auctions, Stack’s Bowers, GreatCollections, eBay and CoinArchives, with recent realized sales weighted most heavily.
- Structure. Dates, mint marks and varieties are verified against at least two independent catalog sources, and Krause-Mishler (KM) numbers are listed where they apply.
- Grades. The PCGS numerical scale is used throughout. Plus grades appear only where market data supports them and always sit closer to the base grade than to the next whole grade.
- Copper. Copper coins carry Brown (BN), Red-Brown (RB) and Red (RD) designations. RB and RD values begin at MS60.
- Consistency. Within a coin and designation, values never fall as the grade rises. Values are rounded to tiers that widen with price.
Review cycle
Every 30 days the guide is compared with new auction and sale results. Routine adjustments are applied directly; any indicated change larger than 40 percent is held for a second review before it is published. Each update is checked automatically for consistency, and any coin that fails a check is shown as “Under review” rather than published with a doubtful value.
What the labels mean
- Priced. Guide values are published for the grades shown.
- Not yet priced. The date and variety structure is verified, but grade pricing is scheduled for a later pass.
- Under review. Values exist but failed a consistency check and are withheld until the next review.
Disclaimer
Values are estimates derived from market evidence and modeling. Actual prices realized depend on eye appeal, certification, provenance and market conditions at the time of sale. Antonio’s International accepts no liability for decisions made on the basis of this guide.