Antique Czech Black Glass & Rhinestone Sash Buckle  1900–1915 Jablonec Glass Silver‑Tone

An elegant early Czech sash buckle dating to the 1900–1915 period, crafted with thin jet‑black Jablonec glass and a geometric square center set with clear rhinestones. The glass is bonded to a silver‑tone metal plate — a construction method used by Czech makers in the early 20th century — with the metal originally painted black to blend seamlessly with the glass.
The buckle is made in two interlocking halves with a center hook closure and two side bars designed for sliding fabric through before stitching it down. This engineering is characteristic of early Czech and Jablonec workshops transitioning from Art Nouveau into early Deco geometry.
There is a small marking on the reverse (“M” or “E10”), typical of Czech workshop batch codes rather than a maker’s signature. The buckle remains in very good antique condition, with three tiny, barely visible edge chips on the thin glass — expected for glass of this age and not distracting in wear or display. Stones are still bright, bonding is stable, and the closure functions cleanly. Age‑appropriate patina on the metal.
A striking, rare example of early Czech craftsmanship.

 Details
•     Origin: Czech (Jablonec)
•     Era: 1900–1915
•     Materials: Thin black glass, clear rhinestones, silver‑tone metal
•     Construction: Glass bonded to metal; painted metal reverse
•     Closure: Two‑part buckle with center hook
•     Use: For fabric sashes, ribbons, or dress belts
•     Markings: Workshop code (“M” or “E10”)
•     Dimensions: 3 7/8" length × 1 3/8" width
•     Condition: Very good, minor edge chips

A refined accent for antique clothing restoration, costume design, or vintage fashion styling. Beautiful on silk sashes, ribbon belts, or as a decorative element in sewing and design projects.

As an antique piece, this buckle supports circular fashion by preserving and reusing historical materials rather than producing new ones.

Gift-ready packaging included.
Please note: Most jewelry photos are taken at 5x to 10x magnification to highlight detail. This may exaggerate any blemishes or wear—please refer to the listed dimensions, as items may appear larger in photos than they are in person.