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Certificates of Authenticity

Salchow & Sons certificates are cited by dealers, relied upon by auctions and trusted by musicians.

To protect the investment of your bow, a certificate of authenticity from a well-respected expert is highly recommended. Salchow & Sons continues to be in top demand from dealers, auctions and musicians. Certificates are signed by Isaac Salchow and backed by years of bench experience and academic study. Certificates cost 2.5% of value of the bow with a minimum of $500, and include a detailed description of your bow with quality photographs.

Bows are examined and photographed in our shop.

Inquire about a Certificate of Authenticity

Please fill out the form below and we will get back to you!
Read our faq
"My relationship with Salchow and Sons began long ago when I was a student at Juilliard, bringing a bow I had been gifted- one of three bows William Salchow made for Sammy Mayes in the early 1970s- in for rehairs and maintenance. Over the course of a more than 30 year relationship..."
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Brinton Averil Smith
Principal Cellist Houston Symphony, Faculty Rice University and Aspen Music Festival
"I trust the expertise of Salchow and Sons when considering the purchase of a bow or any repairs..."
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Jennifer Koh
Concert Violinist
“I have been very happy and fortunate to have a close association with Salchow and Sons for over 45 years! From my early time in NYC as a student through years of living five minutes from Bill Salchow in Westchester and still now as I visit the beautiful shop in the city, I know my bows have always been in the best of hands... ”
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Ani Kavafian
Violinist and Professor, Yale University
"I have known Isaac Salchow for over 20 years, starting from the time I was a student. One could say that my friendship with Isaac has directly informed my musical journey. It is through my numerous visits..."
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Nina Lee
Cellist of the Brentano String Quartet, Quartet in Residence at the Yale School of Music
"I truly look forward to visiting Salchow's for any occasion! It's one of the great joys of the NY music scene and of course it's likely you meet any number of heroic musicians depending on when you show up! It's a shop that feels like a throwback to a different time, but of course, they are on the cutting edge of knowledge and technology in the field..."
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Eric Jacobsen
Cellist, Artistic Director of The Knights, Music Director of Orlando Philharmonic
"I have been a customer of Salchow & Sons since more than 25 years, and it is for me easily the world’s greatest bow workshop, combining outstanding workmanship (best rehair!!) with an expertise about bows second to none. Thanks to Isaac, who realized a crack in my..."
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Alban Gerhardt
Concert Cellist
"I have been going to Salchow & Sons for over eight years. I first went for their great bow rehairs, then repairs, and ultimately wound up buying and selling bows with their help. (I love the bow Isaac found for me so much!) I will continue taking my business to Salchow & Sons because..."
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Matthew Lipman
Concert Violist

Insurance Letters

It's not just an instrument; it's a valuable investment. To your own benefit, it is extremely important to properly insure your bow.

We charge $20 for insurance letters.

Please note: We thank you for respecting the intended use of these letters. They are issued only for personal use by owners when insuring their bows.

Inquire about an Insurance Letter

Please fill out the form below and we will get back to you!
Read our Appraisal faq

Sartory Book

Our Sartory Book project is the culmination of five years of photography and research into the life of Eugene Nicolas Sartory.  

We will show the evolution of his style through his work from 1889-1946, including every World Expostion he participated in, as well as bows with special dedications throughout his life.  The book is a joint venture by Isaac Salchow and Stephan Jansen.

Please sign up below to be notified of the release date!

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