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DJR Expert Guide Series, Vol. 397 — Appraising & Valuing Mid-Century Modern Glass (Blown, Molded & Signed)
Mid-century modern glass—spanning the 1940s through the 1970s—includes some of the most innovative shapes, colors, and techniques in decorative arts history. From Murano sommerso and filigrana works to Scandinavian controlled-bubble crystal and bold American studio pieces, the category covers thousands of makers and countless production techniques. Because the market is now filled with reproductions, misidentified pieces, and modern “Murano-style” imports, accurate appraisal requires a structured, professional method.
DJR Expert Guide Series, Vol. 397 — Appraising & Valuing Mid-Century Modern Glass (Blown, Molded & Signed) provides the complete appraisal workflow used by professional appraisers, collectors, dealers, and interior-design buyers to determine maker, technique, authenticity, condition, and fair-market value.
Inside, you’ll learn how experts:
Distinguish blown, molded, cased, sculptural, and studio-glass construction
Identify Murano techniques including sommerso, filigrana, latticino, zanfirico, pulegoso & scavo
Authenticate Scandinavian glass from Orrefors, Kosta, Iittala, Riihimaki & Holmegaard
Evaluate American mid-century glass including Blenko, Pilgrim, Fostoria & modernist studios
Verify acid stamps, engraved signatures, foil labels & designer marks
Assess color palettes, form complexity, base weight, and stylistic consistency
Identify high-value works by master designers and renowned glass studios
Evaluate condition: scratches, bruises, devitrification, impact marks, surface restoration
Separate authentic mid-century pieces from modern reproductions and “Murano-style” imports
Recognize era-correct colors vs. modern neon or plastic-bright tones
Determine rarity, maker demand, production variations & current market desirability
Document pontil marks, inclusions, color transitions, optical clarity & catalog shapes for appraisal
Understand when professional appraisal is necessary for high-value pieces
Whether evaluating a Murano sommerso vase, a Scandinavian Ariel bowl, an American Blenko decanter, or a signed studio sculpture, this guide provides the complete professional method needed to determine authenticity and value with confidence.
Digital Download — PDF • 9 Pages • Instant Access
Mid-century modern glass—spanning the 1940s through the 1970s—includes some of the most innovative shapes, colors, and techniques in decorative arts history. From Murano sommerso and filigrana works to Scandinavian controlled-bubble crystal and bold American studio pieces, the category covers thousands of makers and countless production techniques. Because the market is now filled with reproductions, misidentified pieces, and modern “Murano-style” imports, accurate appraisal requires a structured, professional method.
DJR Expert Guide Series, Vol. 397 — Appraising & Valuing Mid-Century Modern Glass (Blown, Molded & Signed) provides the complete appraisal workflow used by professional appraisers, collectors, dealers, and interior-design buyers to determine maker, technique, authenticity, condition, and fair-market value.
Inside, you’ll learn how experts:
Distinguish blown, molded, cased, sculptural, and studio-glass construction
Identify Murano techniques including sommerso, filigrana, latticino, zanfirico, pulegoso & scavo
Authenticate Scandinavian glass from Orrefors, Kosta, Iittala, Riihimaki & Holmegaard
Evaluate American mid-century glass including Blenko, Pilgrim, Fostoria & modernist studios
Verify acid stamps, engraved signatures, foil labels & designer marks
Assess color palettes, form complexity, base weight, and stylistic consistency
Identify high-value works by master designers and renowned glass studios
Evaluate condition: scratches, bruises, devitrification, impact marks, surface restoration
Separate authentic mid-century pieces from modern reproductions and “Murano-style” imports
Recognize era-correct colors vs. modern neon or plastic-bright tones
Determine rarity, maker demand, production variations & current market desirability
Document pontil marks, inclusions, color transitions, optical clarity & catalog shapes for appraisal
Understand when professional appraisal is necessary for high-value pieces
Whether evaluating a Murano sommerso vase, a Scandinavian Ariel bowl, an American Blenko decanter, or a signed studio sculpture, this guide provides the complete professional method needed to determine authenticity and value with confidence.
Digital Download — PDF • 9 Pages • Instant Access