MOLS BJERGE NATIONAL PARK.- It’s a rare treat to own a Rolls-Royce, and quite a feat to own more than one. Henrik Frederiksen is the proud owner of an incredible thirteen Rolls-Royce motor cars, each to be offered at Bonhams single-owner Frederiksen Collection Sale, taking place 26 September.

Highlight of the series is the 1914 Rolls-Royce 40/50 Silver Ghost Skiff, estimate 7,200,000-9,200,000 DKK (£675,000-875,000). At over one hundred years old, the 40/50 H.P. Silver Ghost chassis is regarded by many as the model that earned Rolls-Royce the sobriquet "the best car in the world". Incredibly well travelled, it has been enjoyed by previous owners residing in France, Brussels, Cairo, London and California. Today, 54PB presents beautifully with lovely patina and a high degree of originality.

Also offered is an outstanding 1931 Rolls-Royce Phantom II Open Tourer – estimate 2,000,000-2,600,000 DKK (£175,000-250,000). The Phantom was once owned by famous Suffragette, Katharine McCormick. An American philanthropist, Mrs. McCormick is renowned for single-handedly financing the development of the birth control pill.

Reputedly the last model that Henry Royce designed himself, the Phantom II was announced in September 1929 with deliveries commencing immediately. Unlike its predecessor, which inherited its underpinnings from the preceding 40/50HP Silver Ghost model, the Phantom II employed an entirely new chassis laid out along the lines of that of the smaller 20HP Rolls-Royce. Built in two wheelbase lengths, this new low-slung frame enabled coachbuilders to design a sleeker, more modern body for the car.

Rolls-Royce motor cars offered in Bonhams sale include:

• The ex-Robert Barrymore, 1914 Rolls-Royce 40/50 Silver Ghost Skiff – estimate 7,200,000-9,200,000 DKK (£675,000-875,000)

• The ex-Richard Solove,1910 Rolls-Royce 40/50 Silver Ghost 'Balloon Car' – estimate 4,600,000-6,200,000 DKK (£425,000-575,000)

• The ex-Peta Fisher - Blue Train challenging,1933 Rolls-Royce Phantom II Continental Owen Sedanca Coupe – estimate 5,600,000-7,200,000 DKK (£510,000-660,000)

• 1912 Rolls-Royce 40/50 Silver Ghost Cabriolet – estimate 4,200,000-5,600,000 DKK (£390,000-520,000)

• The ex-Maharaja of Patiala and Richard J. Solove 1913 Rolls-Royce 40/50 Silver Ghost Tourer – estimate 4,200,000-5,600,000 DKK (£390,000-500,000)

• The ex-Hedy Lamarr and Fritz Mandl,1937 Rolls-Royce Phantom III Drophead Coupe – Estimate 4,000,000-5,200,000 DKK (£370,000-490,000)

• Ex-John Fasal,1911 Rolls-Royce 40/50 'Roi-Des-Belges' – estimate 3,500,000-5,000,000 DKK (£320,000-470,000)

• The unique Pietro Frua,1973 Rolls-Royce Phantom VI Cabriolet – estimate 2,000,000-2,600,000 DKK (£180,000-240,000)

• 1931 Rolls-Royce Phantom I Playboy Roadster – estimate 2,000,000-2,600,000 DKK (£185,000-235,000)

• The ex-Katharine Dexter McCormick, 1931 Rolls-Royce Phantom II Open Tourer – estimate 2,000,000-2,600,000 DKK (£175,000-250,000)

• 1934 Rolls-Royce 20/25 Owen Sedanca Coupe – estimate 1,000,000-1,300,000 DKK (£90,000-125,000)

• 1927 Rolls-Royce Phantom I Town Car – estimate 950,000-1,250,000 DKK (£85,000-115,000)

• The ex-McElroy,1927 Rolls-Royce Phantom I Tourer – estimate 700,000- 900,000 DKK (£60,000-85,000)

The Frederiksen Collection sale will take place at Lyngsbækgaard Manor, in Mols Bjerge National Park, Denmark, on Saturday 26 September 2015.