The following abbreviations have been used for the provenance
Spink | Spink |
KM | Krause & Michler |
HA | Heritage Auctions |
Bald | AH Baldwin & Sons ltd |
PR | Major F Pridmore |
GK | Gev Kias |
SW | Paul Stevens & Randy Weir |
NGC | Numismatic Guarantee Corp |
PCGS | Professional Coin Grading Service |