Nancy Burke Bosch, ISA AM, Antiques, Furnishings + Decorative Arts



Nancy Burke Bosch
ISA member since Jan 01, 1997

(707) 773-3970 (Office)

1610 Northstar Drive
Petaluma, CA 94954 map

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Providing our clientele with the security of legal documentation verifying the value of antiques, fine art and personal property, since 1997.

PROUDLY SERVING THE SAN FRANCISCO BAY AREA - San Francisco, Marin, Sonoma, Napa and Alameda Counties, including the cities of Sausalito, Belvedere, Tiburon, Mill Valley, Greenbrae, Corte Madera, Larkspur, Ross, San Anselmo, San Rafael, Novato, Petaluma, Santa Rosa, Healdsburg, Sonoma, Napa, Calistoga, St. Helena, Yountville, Berkeley, Layfayette, Concord, Fairfield, San Francisco and Oakland.


Accredited Appraiser - Bosch Appraisal Service: 1997 - Present

I specialize in Legal Written Appraisals of and Consultations for Antiques, Fine Art, Decorative Art, Appreciable Residential Contents and Collectibles for Insurance, Estate Tax, Equitable Distribution to Heirs or Divorcing parties, Charitable Contributions.


I provide Consultations to Trustees of an Estate regarding the sale and disposition of personal property. I also conduct professional, profitable onsite Estate Sales for my clients.



Accredited Member International Society of Appraisers, 1997 - Present 

Active Member Northern California Chapter of ISA, Since 1997

Member Antique Dealers’ Association of San Anselmo, l980 - l997 

Member Marketing and Public Relations Committee, ISA, l998

Member Claims Prevention and Procedures Council, l998

Member of the Board of Directors of the Association of Online Appraisers, 2000

Treasurer, Association of Online Appraisers, 2000-2001


Academic Appraisal Background and Continuing Education:

Graduate of International Society of Appraisers’ University of Maryland:

Completed: Core Course 101: Appraisal Principles and Business Practice


Completed: Core Course 102: Appraisal Ethics, ISA Report Writing Standards, Uniform Standards of Professional Appraisal Practice (USPAP) Identification and Authentication, Market and Value, Research and Analysis, Legal Issues


Completed: Core Course l03: Practical and Legal Appraisal Report Writing


Completed; Specialty Course 20l: 

Appraisal of Antiques and Residential Contents, which includes in depth study of Furniture, Ceramics, Glass, Silver, Oriental Rugs and Carpets, Toys and Dolls, Vintage  Fashions, Linens, Quilts, Coverlets, Samplers, Musical Property, Clocks, Computers, Office Equipment, The Kitchen, The Garage, Collectibles, Books, Works on Paper (Prints)


Completed: Specialty Course 204

Appraisal of Fine Art, which includes in depth study of Major Epochs and Periods of the History of Western Art, Paintings, Sculpture, Works on Paper, Frames, Conservation and Restoration, Identification, Authentication, Research and Market Research, Japanese Prints, Icons, Animation Art, Black and White Photography, Spanish Colonial Religious Art


Completed: Center for Jewelry Studies: Seminar: 

“The Silver & The Old”, Who Are the Jewelry Makers with Christie Romero, Director, Center for Jewelry Studies


Completed: Uniform Standards of Professional Appraisal Practice: 

The Appraisal Foundation’s Fifteen Hour USPAP Course, Sponsored by the International Society of Appraisers, William Novotny ISA AM, Instructor, Course taken and passed, Sacramento, California, February 2008


Completed: Uniform Standards of Professional Appraisal Practice: 

The Appraisal Foundation’s Seven Hour USPAP Course, Sponsored by the International Society of Appraisers, Gayle Skluzacek, Instructor , San Francisco, California, January 2013


Completed: ISA Requalification Course, Instructor: Joyce Newman, ISA CAPP,

February 1 - 2, 2013, Bonham’s San Francisco


Completed: 2014 Foundation for Appraisal Education Seminar:

At Michaan’s Auction Gallery, August 28 - 29, 2014, 

Tiffany Studios: His Famous Works by Allen Michaan, Michaan’s Auctions; 

Contemporary Chinese Art by Susan Lahey, ISA AM MA Eastern Art Consultants

The Gold Rush by Brian Witherell, Witherell’s Auction House

California Art by Peter Fairbanks, AAA, Montgomery Gallery

Midcentury Modern by Steve Cabella, Modern I

Problems of Art Authentication: What’s an Expert to do? 

Panel: Hilarie Faberman, Stanford Museum

Ben Marks,

Matthew Quinn, Quinn’s Auction Gallery

Certified Organic Snuff Bottles by Harry Huang, Asian Arts, Michaan’s

The Value of Celebrity by Laura Woolley, AAA, The Collector’s Lab

Wood Identification: Lecture and Workshop by Rick McDaniels, McBeath Lumber

Ivory - Can it be sold? by Matthew Quinn, Quinn’s Auction Gallery 



  • Decorative Arts & Accessories
  • Furniture


  • Consultant
  • Estate Sales


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