A vintage Scottish thistle stick pin

While it looks similar at first glance due to the textured crosshatch pattern, the bulbous base and the flared, brush-like tuft at the top are the classic characteristics of a blooming thistle flower, which is the national emblem of Scotland.

The estimated value of a vintage Scottish thistle stick pin generally ranges from $15 to $35 USD on the secondary market. 

The exact value depends heavily on the type of metal used:

• Pewter / Silver-Tone Metal: If the pin is made of standard pewter (a common choice for vintage Scottish jewelry makers like Art Pewter), it typically sells used for around $15 to $25