COULD YOUR PORTRAIT BE BY CORNELIS JANSSENS VAN CEULEN?

Previously unknown works by important artists continue to emerge from private collections, estates, inheritances, and long-held family possessions. While authentic works by Cornelis Janssens van Ceulen may be rare, every work deserves to be evaluated on its own merits rather than dismissed simply because it is unfamiliar or undocumented.

If you believe your portrait painting or drawing may be by Cornelis Janssens van Ceulen, obtaining an independent professional opinion is the appropriate first step.

We have specialized in the authentication of works attributed to Cornelis Janssens van Ceulen since 2002. We issue Certificates of Authenticity (COAs), Authentication Reports, appraisals, valuations, provenance reports, and provide buying, selling, brokerage, and investment advisory services for collectors, attorneys, insurers, financial institutions, estates, museums, and private clients worldwide.

Getting started is straightforward. Simply send us photographs of the work together with its dimensions and any information you have regarding its history or ownership. After reviewing the material, we will recommend the most appropriate course of action.

AUTHENTICATION

Is this a Cornelis Janssens van Ceulen?

From a single photograph of ordinary quality, we can often determine whether a portrait appears consistent with Janssens van Ceulen’s work or whether it clearly does not. His portraits were executed on supports including wood panel, canvas, and copper, so the technical evidence must be evaluated according to the particular work.

What services do you provide?

We provide authentication, certification, Certificates of Authenticity (COAs), Authentication Reports, appraisals and valuations, provenance research, private sales and brokerage, investment advice, and analytical art market research.

Is it possible to discover a previously unknown Cornelis Janssens van Ceulen today?

Yes. Seventeenth-century portraits can remain unidentified or misattributed in private collections for generations, particularly when the sitter’s identity or earlier ownership history has been lost.

Do I need to get my Cornelis Janssens van Ceulen authenticated?

Yes. Authentication is essential if you wish to sell your work for its full market value. It is also important for insurance, estate planning, charitable donations, financing, and many legal purposes.

Is it complicated to get a Cornelis Janssens van Ceulen authenticated?

Not for you. Simply send us photographs of the front and reverse, close-ups of the signature or monogram, inscriptions, surface and support, the dimensions, and anything you know about the portrait’s history. The investigation itself is our responsibility.

How long does it take to authenticate a Cornelis Janssens van Ceulen?

It depends on how much is already known about the work when we begin the investigation. In the simplest cases, authenticity can be confirmed within a couple of weeks. More complex cases may require several months.

How much does it cost to authenticate a Cornelis Janssens van Ceulen?

From the low hundreds to the high thousands. It depends on how much is already known and documented, where relevant archives are located, and whether travel or scientific testing is required.

Can a signature alone prove that a Cornelis Janssens van Ceulen portrait is authentic?

No. Janssens frequently signed and dated early works, while later portraits are often unsigned. A signature or monogram must therefore be considered together with technique, materials, support, date, provenance, and the painting itself.

Can an unsigned Cornelis Janssens van Ceulen portrait still be authentic?

Yes. Later works by Janssens can be unsigned, so the absence of a signature does not by itself make a portrait inauthentic.

What documents help authenticate a Cornelis Janssens van Ceulen portrait?

Any document that mentions, describes, illustrates, or refers to the work may assist the authentication. Photographs, invoices, correspondence, exhibition records, restoration or conservation reports, insurance documents, auction records, inventories, and family papers can all contribute valuable evidence.

Can a Cornelis Janssens van Ceulen portrait be authenticated from photographs?

Yes. High-quality photography is an extremely useful authentication tool and allows us to study paint handling, support, signatures or monograms, inscriptions, surface, costume details, and condition remotely. When additional evidence is required, we may recommend an in-person examination. We examine works worldwide.

Is it always necessary to perform scientific analyses of a Cornelis Janssens van Ceulen?

No. Many portraits can be authenticated through research, provenance investigation, comparative analysis, and technical examination. Scientific testing may be useful when questions remain concerning pigments, grounds, wood panels, canvas, copper supports, or other materials.

What if my Cornelis Janssens van Ceulen has no provenance?

Incomplete provenance is common. When provenance is incomplete, authentication relies more heavily on research, technical examination, photography, and, where appropriate, scientific testing.

Do you issue Certificates of Authenticity for Cornelis Janssens van Ceulen works?

Yes. Upon completion of the authentication, we issue a Certificate of Authenticity (COA) together with a detailed and fully referenced Authentication Report.

APPRAISALS & VALUATIONS

How much is my Cornelis Janssens van Ceulen portrait worth?

We will appraise your portrait and determine its value. Important factors include date, sitter, dimensions, support, quality, condition, provenance, rarity, and current market demand; attribution must also distinguish works by Janssens himself from works by his son or later copies.

SELLING

Can you sell my Cornelis Janssens van Ceulen for me?

Yes. We specialize in private sales but use every appropriate selling method to obtain the highest possible net price. We manage the process professionally, confidentially, and on your behalf.

Do I need an appraisal before selling my Cornelis Janssens van Ceulen?

Yes. Your work should be priced correctly for the country, market, and method of sale. An independent appraisal helps prevent both underpricing and overpricing.

Do I need authentication before selling my Cornelis Janssens van Ceulen?

Yes. Without authentication, your work may sell for only a fraction of its potential market value.

Can you help me maximize the selling price of my Cornelis Janssens van Ceulen?

Yes. Authentication, provenance, valuation, timing, presentation, and the chosen sales method can all influence the final result. We also provide collection management advice designed to maximize value.

Should I restore my Cornelis Janssens van Ceulen before selling it?

Usually not. Buyers often have their own preferences regarding conservation and restoration. We generally recommend selling the portrait in its present condition unless there is a compelling reason to do otherwise.

How long does it take to sell a Cornelis Janssens van Ceulen?

Higher-value works generally require more time to sell because there are fewer qualified buyers. Correct pricing, strong documentation, and the appropriate sales method all contribute to a successful sale.

BUYING & ADVISORY

Should I buy a Cornelis Janssens van Ceulen?

If you enjoy Janssens van Ceulen’s work, certainly. If your primary objective is investment, we can evaluate the proposed acquisition and alternative opportunities.

Can you review a Cornelis Janssens van Ceulen before I buy it?

Yes. We provide independent pre-purchase research and analysis for collectors and investors. We also prepare predictive art market forecasts and Buy-Hold-Sell recommendations.

What should I check before buying a Cornelis Janssens van Ceulen?

Three fundamental questions should always be answered: Is it authentic? What is its condition? Is the price reasonable? The sitter, date, support, signature or monogram, provenance, restoration history, and precise attribution should also be examined carefully.

How can I avoid buying a fake Cornelis Janssens van Ceulen?

Call us before you buy. An independent review before completing the purchase is one of the simplest ways to reduce the risk of acquiring a forged, copied, or misattributed portrait.

Can you advise me on building a collection?

Yes. We advise collectors on the financial aspects of acquisition, ownership, collection management, and eventual sale.

REQUEST A CORNELIS JANSSENS VAN CEULEN AUTHENTICATION OR APPRAISAL

Whether you require authentication, a Certificate of Authenticity, an appraisal, valuation, provenance research, buying advice, selling assistance, brokerage, or investment guidance regarding a work attributed to Cornelis Janssens van Ceulen, our specialists are available to assist.

Complete the contact form below or call us at +1 (212) 658-0466 to discuss your work with one of our experts.