VAT rate of 5% is payable on hammer price and at 15% on the buyer's premium
Frank E. Bivens, Jr.
F.Theodore Dexter, Half Century Scrapbook of Vari-type Firearms, 1960, p.102, pl.46, No.212
A wide range of variations exist within Mortimer's production of repeating magazine pistols.
For an account of the types see H. Lee Munson, The Mortimer Gunmakers 1753-1923 pp.225-238