• These items are identified as antique Bolivian silver tupus or shawl pins, which functioned as garment fasteners rather than cutlery.

• They feature large, ornate bowls and long, slender handles, often intricately engraved with decorative motifs.

• Similar antique pieces have been documented with lengths reaching up to 42 cm. 

The estimated market value for a pair of antique Bolivian silver tupus (shawl pins) ranges between $100 and $300. Smaller or individual examples generally list online from $50 to $150, while larger, exceptionally well-preserved colonial-era pairs can achieve significantly higher prices at specialized auctions. 

Primary Valuation Factors

• Size and Weight: These specific examples are noticeably large when compared to the yellow measuring tape. Greater length and high silver mass significantly increase the base value.

• Material Purity: Traditional South American tupus are often fashioned from melted-down Spanish Colonial coinage, resulting in high-grade silver content (typically around 900 silver or sterling). 

• Artistry and Condition: The value rises based on the complexity of the hand-engraved scrolling motifs and whether the long, thin structural pins remain straight and completely intact.