GRANDMA MOSES (ANNA MARY ROBERTSON MOSES)
1860–1961
COULD YOUR PAINTING BE BY GRANDMA MOSES?
Previously unknown works by important artists continue to emerge from private collections, estates, inheritances, and long-held family possessions. While authentic works by Grandma Moses 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 painting may be by Grandma Moses, obtaining an independent professional opinion is the appropriate first step.
We have specialized in the authentication of works attributed to Grandma Moses 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 Grandma Moses?
From a single photograph of ordinary quality, we can often determine whether a work appears consistent with Grandma Moses’s work or whether it clearly does not. Her paintings can vary in scale, support, composition, and degree of detail, so a first impression may not always be definitive.
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 Grandma Moses today?
Yes. Grandma Moses was highly productive and created a large body of paintings, so previously undocumented or misidentified works can still emerge from private collections, estates, inheritances, and family holdings.
Do I need to get my Grandma Moses 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 Grandma Moses authenticated?
Not for you. Simply send us photographs of the front and reverse, close-up photographs of the signature, inscriptions, paint surface, support, labels and other important details, the dimensions, and anything you know about the painting’s history. The investigation itself is our responsibility.
How long does it take to authenticate a Grandma Moses?
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 Grandma Moses?
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 Grandma Moses painting is authentic?
No. A signature must be evaluated together with the painting’s materials, support, technique, date, provenance, and other physical and documentary evidence.
Can an unsigned Grandma Moses painting still be authentic?
Yes. The absence of a signature does not by itself make a painting inauthentic. The painting must be evaluated as a whole.
What documents help authenticate a Grandma Moses painting?
Any document that mentions, describes, illustrates, or refers to the painting may assist the authentication. Photographs, invoices, correspondence, exhibition records, restoration or conservation reports, insurance documents, auction records, and family papers can all contribute valuable evidence.
Can a Grandma Moses painting be authenticated from photographs?
Yes. High-quality photography is an extremely useful authentication tool and allows us to study composition, paint application, surface, signature, inscriptions, support, labels, and other characteristics 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 Grandma Moses?
No. Many paintings can be authenticated through research, provenance investigation, comparative analysis, and technical examination. Scientific testing of pigments, binders, boards, fiberboard, or other materials is generally reserved for more difficult cases when questions remain concerning age or composition.
What if my Grandma Moses 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 Grandma Moses 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 Grandma Moses painting worth?
We will appraise your painting and determine its value. Important factors include date, subject, dimensions, condition, provenance, rarity, quality, and current market demand.
SELLING
Can you sell my Grandma Moses 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 Grandma Moses?
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 Grandma Moses?
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 Grandma Moses?
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 Grandma Moses before selling it?
Usually not. Buyers often have their own preferences regarding conservation and restoration. We generally recommend selling the painting in its present condition unless there is a compelling reason to do otherwise.
How long does it take to sell a Grandma Moses?
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 Grandma Moses?
If you enjoy Grandma Moses’s paintings, certainly. If your primary objective is investment, we can evaluate the proposed acquisition and alternative opportunities.
Can you review a Grandma Moses 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 Grandma Moses?
Three fundamental questions should always be answered: Is it authentic? What is its condition? Is the price reasonable? Date, subject, dimensions, support, provenance, and overall quality can also significantly affect the painting’s market value.
How can I avoid buying a fake Grandma Moses?
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 or misattributed work.
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 GRANDMA MOSES 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 Grandma Moses, 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.

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