Art Deco Geometric Openwork Sterling Silver and Enamel Circlet Brooch
Jewelry (Brooch/Pin) · Unidentified manufacturer; typical of mass-market sterling jewelry firms of the 1920s-30s such as R. Blackinton & Co, Coro (early), or European export workshops.
Pattern: Geometric Lace Series; typical of the 'Machine Age' influence on Art Deco decorative arts, likely nameless or part of a catalog stock number.
Type
Jewelry (Brooch/Pin)
Maker
Unidentified manufacturer; typical of mass-market sterling jewelry firms of the 1920s-30s such as R. Blackinton & Co, Coro (early), or European export workshops.
Material
Sterling Silver (.925 purity) with light blue enamel and possibly paste or faux pearl accents. Weight is estimated at 3-5 grams.
Dimensions
Diameter approximately 20-25mm (about 0.8 to 1 inch). Lightweight construction typical for lapel or blouse pins.
Description
A delicate Art Deco circlet brooch featuring a dual-nature design. The primary frame consists of a rigid geometric fretwork pattern reminiscent of architectural motifs. Overlaid on the upper left is a contrasting delicate floral and foliage spray, accented with tiny light blue enamel dots meant to mimic turquoise or forget-me-nots. The piece has developed a heavy natural patina, highlighting the intricate recessed details.
Key Features
The 'circle within a circle' geometric frame, the use of industrial fretwork patterns, and the petite floral enamel accents.
Material & Composition
Sterling Silver (.925 purity) with light blue enamel and possibly paste or faux pearl accents. Weight is estimated at 3-5 grams.
Finish & Decoration
Oxidized antique finish; features openwork piercing, milgrain-style edging, geometric fretwork, and applied floral/foliate elements with cold enamel decoration.
Hallmarks & Stamps
Expect a small 'STERLING' or '925' stamp on the reverse pin stem or rim. Occasional maker's initials may be present but are not visible in the image.
Construction Details
Die-struck and stamped from thin silver sheet with machine-pierced geometric patterns; applied decorative floral spray soldered to the frame.
Functional Features
Horizontal pin-back assembly with a simple C-clasp or early safety catch; rotating/hinged pin stem.
Handle & Grip Details
Not applicable; features a standard thin gauge metal pin stem for attachment to fabric.
Craftsmanship Details
Precision die-work with clean edges in the geometric sections; hand-applied solder joins for the decorative overlay show decent commercial quality.
Authentication Indicators
Construction from die-stamping is consistent with 1920s production. Patina layer is deep and appears authentic to age rather than chemically induced.
Origin & Manufacturing
Likely United States or Western Europe (Germany/UK export). Produced in a factory setting utilizing specialized die-cutting machinery.
Era & Period
Art Deco (1920-1935); characterized by the mixture of rigid geometric lines (inner circle) and softer naturalistic overlays (upper left spray).
Age Estimate
Circa 1925-1930. The design reflects the transitional period between Edwardian lacy styles and Art Deco industrialism.
Cultural Significance
Reflects the post-WWI shift where high-fashion jewelry styles were 'democratized' into affordable sterling silver versions for the growing middle class.
Condition Notes
Fair to Good. Significant tarnish and oxidation (sulfide deposits) across the surface. Enamel appears mostly intact but dusty. The pin stem appears slightly bent.
Value Estimate
$35 - $65 USD depending on the specific hallmark and completeness of enamel. Value is primarily in the vintage aesthetic rather than silver weight.
Care & Maintenance
Gentle cleaning with a soft brush and mild soapy water first. Use a silver polishing cloth carefully to avoid snagging the delicate openwork; avoid ultrasonic cleaners due to enamel.
Similar Pieces
Edwardian lace brooches (softer, more scrolls); Marcasite Art Deco pins (similar geometry but with sparkling stones); Czechoslovakian glass-set silver pins.
Interesting Facts
Brooches of this size were often called 'sweetheart jewelry' or 'bar pins' and were intended for 'day wear' to secure collars or lightweight scarves.