SVEN WEJSFELT. Figurin, stengods, katt, "LO", Gustavsberg.

Sven Wejsfelt · Ceramics and porcelain · Roslagens Auktionsverk

Open auction lot

research

Acquisition position

Current all in cost

433.54 SEK

Current bid or estimate250.0 SEK

Modelled discount56.5%

Liquidity score80%

Potential market value

Specialist value interval

350 to 2594 SEK

Value confidence70%

Comparable sales30

Evidence strength

39%

Identity confidence32%

Visual match0%

External references12

Market anomaly

65%

Information gap67%

Potential undervaluation56.5%

Risk profile

Authenticity risk8%

Condition risk6%

Investigation rationale

Why this may be worth considering

maker or artist identity supplied
auction estimate is materially below the specialist model
all in acquisition cost is at least 55 percent below modelled value
Estimate materially below specialist value

Decision guardrails

What must be verified

missing factory
missing material
missing mark
missing dimensions

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistSven Wejsfelt

MakerMissing

MediumMissing

MaterialsMissing

Dimensions? × ? × ? cm

WeightMissing g

YearMissing

EditionMissing

MarksMissing

ConditionBruksslitage.

ProvenanceMissing

Modelceramics_specialist 2.0.0

Djupstämplad Gustavsberg Sweden Frihets Förlag. Höjd ca 16 cm, bredd ca 11 cm, djup ca 9 cm.

Identity resolution

Artist and maker hypotheses

Ranked from independent evidence. Confirmation or rejection becomes controlled training data.

7 candidates

1 independent sources

Lo Spagna (Giovanni di Pietro; Italian, active 1504–28)

Visual 0% · Name 86% · Marks 25% · Material 40%

33% combined confidence

1 independent sources

Mark di Suvero American, born 1933

Visual 0% · Name 38% · Marks 25% · Material 40%

25% combined confidence

1 independent sources

Gego (Gertrud Goldschmidt) (Venezuelan, born Germany, 1912–1994) poetry by Alfredo Silva Estrada (Venezuelan, 1933-2009)

Visual 0% · Name 38% · Marks 25% · Material 40%

25% combined confidence

1 independent sources

Victor de Vasarely Hungarian, 1908-1997

Visual 0% · Name 36% · Marks 25% · Material 40%

24% combined confidence

1 independent sources

Jim Dine American, born 1935

Visual 0% · Name 35% · Marks 25% · Material 40%

24% combined confidence

1 independent sources

Manuel Alvarez Bravo Mexican, 1902–2002

Visual 0% · Name 35% · Marks 25% · Material 40%

24% combined confidence

1 independent sources

George Baxter English, 1804-1867

Visual 0% · Name 34% · Marks 25% · Material 40%

24% combined confidence

Closed deal feedback

Teach the valuation model

Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.

Learning guardrail

Truth before training

Unverified AI output is stored as a hypothesis only.
One-source matches are confidence capped.
Rejected matches improve source and feature calibration.
At least five verified closed sales are required per category.

Global research evidence

Reference material found elsewhere

12 references

Art Institute of Chicago

Saint Catherine of Siena

Lo Spagna (Giovanni di Pietro; Italian, active 1504–28)

Portrait of the Eternal (Retrato de lo eterno)

Manuel Alvarez Bravo Mexican, 1902–2002

Blue and Green

Victor de Vasarely Hungarian, 1908-1997

Portrait of the Eternal (Retrato de lo Eterno)

Manuel Alvarez Bravo Mexican, 1902–2002

Untitled

Mark di Suvero American, born 1933

Lo Studio

George Baxter English, 1804-1867

Lo Studio

George Baxter English, 1804-1867

Cover with colophon, from The Never Projected (Lo Nunca Proyectado)

Gego (Gertrud Goldschmidt) (Venezuelan, born Germany, 1912–1994) poetry by Alfredo Silva Estrada (Venezuelan, 1933-2009)

Plate two, from The Never Projected (Lo Nunca Proyectado)

Gego (Gertrud Goldschmidt) (Venezuelan, born Germany, 1912–1994) poetry by Alfredo Silva Estrada (Venezuelan, 1933-2009)

Plate four, from The Never Projected (Lo Nunca Proyectado)

Gego (Gertrud Goldschmidt) (Venezuelan, born Germany, 1912–1994) poetry by Alfredo Silva Estrada (Venezuelan, 1933-2009)

Five Layers of Metal Ties

Jim Dine American, born 1935

An Informal Tie

Jim Dine American, born 1935

Comparable logic

Specialist model explanation

30 category specific sold comparables selected
model uses ceramics and porcelain specific identity, material, size and documentary fields
value interval uses weighted 20th, 50th and 80th percentiles with a dispersion adjustment
explicit category supplied

Comparable ID	Match	Price	Reasons
9767	67%	300.0 SEK	identity 100%, material 45%, size 62%, title 92%, factory marks 45%
6379	51%	650.0 SEK	identity 57%, material 45%, size 62%, title 47%, factory marks 45%
12789	51%	200.0 SEK	identity 57%, material 45%, size 62%, title 45%, factory marks 45%
4276	51%	650.0 SEK	identity 57%, material 45%, size 62%, title 43%, factory marks 45%
9184	49%	1400.0 SEK	identity 45%, material 45%, size 62%, title 65%, factory marks 45%
10792	49%	450.0 SEK	identity 45%, material 45%, size 62%, title 63%, factory marks 45%
11762	49%	300.0 SEK	identity 45%, material 45%, size 62%, title 63%, factory marks 45%
10832	48%	4000.0 SEK	identity 50%, material 45%, size 62%, title 40%, factory marks 45%

Automatic signature module

Every artwork image is checked for signatures and marks

The local engine detects and isolates candidate regions, searches the trusted mark library and runs conservative signature forensics. Optional AI interprets unreadable regions and creates research queries without changing the forensic verdict.

Candidate regions0

Signature regions0

AI enrichmentLocal only

PipelineNot run

No automatic mark result yet

The module runs during normal analysis when a local image is available.

Marks laboratory

Isolate and identify signatures, hallmarks and maker marks

110 independent methods generate cleanup variants, stroke and symbol descriptors, library matches, trust controls and conflict warnings.

Open mark library

Signature forensics

Check consistency with known genuine variation

This does not declare a signature genuine. It measures fit against a multi-source reference set, confusing signers and natural variation.

No forensic check yet

Run mark matching first, then compare the questioned signature against a sufficiently broad trusted reference set.

SVEN WEJSFELT. Figurin, stengods, katt, "LO", Gustavsberg.

Current all in cost

Specialist value interval

Why this may be worth considering

What must be verified

Add and compare research imagery

Known facts and missing information

Artist and maker hypotheses

Lo Spagna (Giovanni di Pietro; Italian, active 1504–28)

Mark di Suvero American, born 1933

Gego (Gertrud Goldschmidt) (Venezuelan, born Germany, 1912–1994) poetry by Alfredo Silva Estrada (Venezuelan, 1933-2009)

Victor de Vasarely Hungarian, 1908-1997

Jim Dine American, born 1935

Manuel Alvarez Bravo Mexican, 1902–2002

George Baxter English, 1804-1867

Teach the valuation model

Truth before training

Reference material found elsewhere

Saint Catherine of Siena

Portrait of the Eternal (Retrato de lo eterno)

Blue and Green

Portrait of the Eternal (Retrato de lo Eterno)

Untitled

Lo Studio

Lo Studio

Cover with colophon, from The Never Projected (Lo Nunca Proyectado)

Plate two, from The Never Projected (Lo Nunca Proyectado)

Plate four, from The Never Projected (Lo Nunca Proyectado)

Five Layers of Metal Ties

An Informal Tie

Specialist model explanation

Every artwork image is checked for signatures and marks

No automatic mark result yet

Isolate and identify signatures, hallmarks and maker marks

Match an unknown mark

Add a known reference

Check consistency with known genuine variation

No forensic check yet