A collection of 45 etchings by the late Lucian Freud, which are described as the most complete arrey of prints by the artist, are set to be auctioned off next month.

The Printer's Proof: Etching by Lucian Freud from the Studio Prints Archive include prints and etchings which have been estimated to sold for up to £70,000 at Christie's Auction house on February 15.

The set spans over a 25-year-year period and includes work such as Portrait Head, which could sold between £15,000 and £25,000 and Pluto Aged Twelve, an image of Freud's pet whippet who spent a lot of time in the artist's studio, estimated to fetch anywhere between £50,000 and £70,000.

Freud died on 20 July 2011 and was praised for being the pre-eminent British artist of his time.

The collection will be exhibited in the Museum of Mankind from the 16 to 27 January alongside a further six prints on loan from the Studio Prints Archive.