Materials and Features:

• Architectural "Shrimp Tail" Layered Geometry: A spectacular example of Gustave Sherman's peak mid-century design, featuring an asymmetrical, cascading 3D spiral configuration that curves with dynamic kinetic elegance.

• Premium Swarovski Crystal Palette: Densely hand-encrusted with a high-octane mixture of premium clear Swarovski crystals, combining long, slender, pointed navette-cut marquise stones with alternating rows of brilliant round chaton-cut focal rhinestones.

• Hand-Set Structural Prong Engineering: Every single crystal is individually secured within thick, hand-crimped metal prongs rather than mass-market glues, ensuring max light transmission and a permanent hold.

• Tarnish-Resistant Rhodium Shield: Plated in mirror-bright industrial rhodium to deliver an enduring silver-toned finish that completely resists atmospheric oxidation, surface clouding, and skin oils.

Type: Brooch Pin (Premium safety bar with a tight roll-over safety catch mechanism)

Age/Origin: Circa 1950s–1960s / Montreal, Quebec, Canada

Marks: Unsigned Attribution (Verified design blueprint matching signed Sherman "Shrimp" collection sets. While the accompanying clip earrings within this collection card series carried the signature stamp, the matching structural brooch was left clean as an engineering choice)

The Story: In luxury mid-century Canadian costume jewelry production, Gustave Sherman's Montreal workshop systematically prioritized design flow over marking placement. Complete presentation box sets were often stamped exclusively on the earring findings or necklace clasps, leaving coordinating statement pins unsigned. These rare masterworks are instantly identified by collectors through their distinct structural backing tracks, signature use of slender navette cuts, and uncompromised reliance on hand-set Swarovski glass gems.

Measurements:

• Dimensions: 2.625" Long x 1.625" Wide at widest apex point

• Volumetric Mass: Heavy, premium structural costume density

Condition: Excellent Archival Condition. The rhodium plating remains incredibly bright with zero pin-hole corrosion or base metal exposure. Every crystal stone is 100% original, uniformly bright, and perfectly matched with zero yellowing, foil breakdown, or cloudy foil degradation.