Could it be so?
First coin — 3.11g, 2.4cm Probable DHJ# 4.103
The weight is above average for New Type issues, which typically range between 2.5g and 2.9g.
The calligraphy appears more pronounced and symmetrical, with well-defined strokes.
The character 寳 (Hō) has separated legs, typical of post-1668 issues.
DHJ# 4.103 is one of the earlier New Type variants, attributed to the Edo mint, with regular edges and good casting quality.
Second coin — 2.62g, 2.4cm Probable DHJ# 4.108
The lighter weight is consistent with later and more economical issues.
The characters are slightly thinner and less deeply struck.
Here too, the legs of 寳 are separated, but the casting is less precise.
DHJ# 4.108 is a more common variant, attributed to the Osaka or Nagasaki mint, with higher-volume production and lower overall quality.
