Robert Butler Art Authentication Research Service

Robert Butler Jr draws on his own distinguished past on The Legacy Highwaymen Artiste. As a Legacy Highwaymen and heir to a Fine Art ynasty, the first born of Highwaymen Artist Robert Butler.

Who May Apply

Authentication Research Service is offered to private individuals, art dealers, and other art professionals. Robert Butler Jr will only examine a work for an owner or an agent officially representing the owner.


Preliminary Inquiries

Robert Butler Jr is able to undertake only a limited number of authentication research projects each year. Therefore, we ask applicants to proceed in two stages. At the preliminary inquiry stage, we request a non-refundable deposit, a signed contract and the documentation and information described on our application form. This includes two professional quality 8" x 10" color photographs and a minimum 5" x 7" color transparency, together with all provenance information and any verbal or written opinions — positive or negative — that have previously been expressed about the work. We will retain at least one photograph for our records.

Please note: HDA will rarely accept a work lacking an initial attribution.

Authentication Research

If a work is accepted for research and the signed contract by the owner is in-hand, Robert Butler Jr. will assign a researcher, and identify and consult with the appropriate specialists, whether on HDA Art Advisory Council or elsewhere. Several experts may be - and usually are - consulted on a project. Generally, their names are provided in Robert's report; however, certain experts may wish to remain anonymous, usually because their museum or university affiliation requires that.

At the appropriate time, Robert Butler Jr will ask to examine the work in person.

A “Certificate of Authenticity” will be presented. Authorship will be presented after the completion of the research. In rare instances, the report may not be conclusive.


HDA charges an initial, non-refundable $200 deposit at the Preliminary Inquiry stage. This will be applied toward a basic $400 cost if HDA is able to undertake the research and the client and HDA agree to proceed. Additional charges may be required for technical analysis or other work; however, this will not be undertaken without the owner's consent. All shipping to and from HDA and insurance costs are the responsibility of the client. Please note: HDA will not accept responsibility for loss or damage to the artwork for any reason, whether theft, fire, leakage, accidents, or other unforeseen circumstances.

Publishing Rights

HDA reserves the right to publish the results of its research in the The Official Highwaymen Artist Robert Butler Online Catalogue Raisonnês or elsewhere; however the owner's name will not be revealed without permission. In this way, HDA can inform the public and scholars about issues relating to attribution and authenticity, advance scholarship and help prevent the trafficking of forged or misattributed art.

Hahnemühle Certificate of Authenticity & 

Hologram System


Certificate of Authenticity System Produce Verifiable Limited Editions Reduce Risk of Forgery Hologram Deckle-Edged Mould-Made Paper Serialized Number 

Custom Text


The Certificate of Authenticity & Hologram System from Hahnemuhle allows you to protect the security and genuineness of your limited edition artwork and reproductions on Hahnemuhle paper and reduces risk of forgery.

Each certificate is made of premium deckle-edged mould-made paper with a Hahnemuhle watermark and fluorescent security fibers. Two matching, serialized, numbered holograms are used for each certificate. One is applied to the certificate and the other to the reverse side of the artwork.

Certificate of Authentication 

Use this special system to guarantee the authenticity of your artwork and reduce the risk of forgery.


Each certificate uses two matching, serialized, numbered holograms with one applied to the certificate and the other to the reverse side of the artwork to ensure they match.


Highwaymen Dynasty Auctioneers

340 Royal Poinceciana Way, STE 317-230, Palm Beach, FL 33480, US

1+ (561)899-5445 

1+ (855) 553-3229

If you are interested in having HDA research your work, please call or write for additional information and application forms.


Catalogue Raissoné/Letter of Provenance Application.