1/2 Baht - Rama V Nickel Pattern, Coin alignment

In 1869, Rama V had not yet formally assumed the throne — he was crowned in 1868 at age 15, and the early years of his reign saw considerable experimentation with Western-style coinage as Siam sought to modernize its monetary system under foreign pressure and diplomatic scrutiny. Pattern issues from this period were produced in multiple metals and alignments, almost certainly by a European contractor, as Siam possessed no domestic facility capable of striking mechanized coinage at that date.

The coin alignment on this pattern distinguishes it from medal-aligned siblings in the same trial series, suggesting the mint was testing both orientations before committing to a production standard.