MYKOYNS
Philippine Numismatics

Explore the unusual origins of grooved Philippine coins and the question of whether they are mint errors, post-mint damage, scrap markings, or undocumented numismatic pieces.

Learn how to read Philippine coin details such as dates, mint marks, legends, and varieties across major series. A practical guide for collectors building stronger identification skills.

Discover the varieties found in Philippine Republic banknotes, including signature combinations, printers, serial numbers, specimen notes, and error notes.

Learn about U.S.–Philippine coinage (1903–1946), including designs, mint marks, varieties, proof issues, and key rarities in this collector’s guide to USPI coins.

Why were coins holed, and do they still have value? A closer look at how collectors interpret damage, history, and meaning.

Discover how ordinary-looking coins can reveal hidden coin varieties through closer study, careful observation, and real collecting experience.

Learn about stamped and marked coins—counterstamped, countermarked, and chopmarked coins used in the Philippines. Discover how these marks validated foreign coins in circulation and why they remain important to collectors of Philippine currency.

Explore Spanish-Philippine decimal coins and learn how to collect colonial Philippine coinage. This guide covers the Manila Mint, major coin series, denominations, and challenges collectors encounter.