This is a wonderful screenprint of Begonias by highly regarded artist Mary Newcomb. From the Edinburgh Printmakers Workshop with their embossed stamp this is the H/C. Hors d’Commerce (a French term and very similar to an Artist Proof. It means not for commerce, or not for sale. They tend to be given by the artists as gifts and are quite rare).
H/C is initialled in the bottom left hand corner.

It is signed in pencil on the bottom right hand corner

I understand this was a limited edition of 60 and produced in 1997

The frame size and is 67cm x 71.5cm.

Her work is shown at the Krane Calman Gallery London

https://www.cranekalman.com/artists/52-mary-newcomb/works/

This is a link to one of her screenprints which is listed at £1950

https://www.jennaburlingham.com/artists/146-mary-newcomb/works/11299-mary-newcomb-the-butterfly-arena-the-castle-ruins-hyeres-1997/

Mary Newcomb (nee Slatorn) (1922-2008) was born in Harrow-on-the-Hill, but she developed a passion for the English countryside while growing up in Wiltshire. After a general sciences degree at Reading University, she taught maths and science at Bath High School. On a trip at Walberswick, she met trainee farmer Godfrey Newcomb, who had been raised in India. After their marriage they lived on small farms in the Waveney valley where a fledgling painter would find everything she needed for her art. Her first creative venture was in clay: she and Godfrey turned out decorative slipware which harked back to medieval pots and was popular with a new wave of craft shops. Within a few years Godfrey was running the farm and pottery, as Mary finally found her vocation in painting.

She became a stalwart of the Norwich Twenty Group, before daring to take a bag of work to London dealer, Andras Kalman. On that occasion the Knightsbridge premises were thronged with people, so Mary went home again. But her second attempt resulted in an instant meeting of minds and the start of a model relationship between artist and dealer.
With a dozen solo exhibitions at Crane Kalman from 1970, and further shows across Europe and in America, the Newcomb name was firmly on the map. There were purchases by numerous public galleries including the Tate Gallery, London.

Mary died in 2008.