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Showing 12 articles.
storage-collecting-supplies
The wrong storage box can scratch a certified slab, crack a holder, or invite humidity damage that quietly destroys resale value. Here's how to protect your
·9 min read
authentication-grading
Counterfeit Spanish cob coins have grown convincingly realistic in recent years. This guide walks intermediate collectors through the detection methods that
·9 min read
storage-collecting-supplies
Spanish gold cobs are oddly shaped by nature — and a coin capsule that fits a round modern coin will crush or rattle a cob. Here's how to size capsules
·9 min read
storage-collecting-supplies
A practical guide to organizing and protecting Spanish colonial gold coins — from loose cob escudos to slabbed NGC/PCGS specimens — with clear tradeoffs on
·9 min read
storage-collecting-supplies
The right reference books can save you from costly mistakes when buying Spanish colonial gold coins. Here are the essential titles — and the honest tradeoffs
·9 min read
storage-collecting-supplies
You spent real money on a certified Spanish gold coin — now display it like it deserves. A practical guide to slab stands, storage cabinets, and the light and
·9 min read
storage-collecting-supplies
Not all digital microscopes resolve the tiny stamped letters that separate a common cob from a scarce attribution — here's how to match the right tool to the
·9 min read
Mark Sullivan
A practical field guide for intermediate collectors on using a jeweler's loupe to spot the telltale signs of genuine Spanish cob coins — and the red flags that
·9 min read
storage-collecting-supplies
Transporting rare coins — from a $300 cob escudo to a $50,000 shipwreck survivor — requires more than a zip-lock bag and optimism. Here is the gear, the math
·9 min read
storage-collecting-supplies
A practical inventory system for Spanish gold coin collectors — because a cob you can't document is a cob you can't sell, insure, or pass on at fair value.
·9 min read
storage-collecting-supplies
A practical guide for intermediate collectors on choosing home storage for Spanish gold coins — what fireproof safes and lock cases actually protect against
·8 min read
storage-collecting-supplies
The cheap plastic holder you grab at a coin show could silently destroy a raw cob worth hundreds of dollars. Here's how to choose the right flip, avoid PVC
·9 min read