Thanks to costume supervisor Joyce Hawkins for sharing the photo. The photo is from a six part series about Alexander Graham Bell, recorded at the Gosta Green studio in 1965, and transmitted weekly on BBC 1 from 28th February 1965, at 17.35. Here is the entry from the Radio Times, c/o the BBC Genome project:
Synopsis
A serial in six parts by LYON TODD adapted by ALISTAIR BELL
PART 2: A Note In Music
Costumes supervised by Joyce Hawkins
Make-up supervised by Gwen Arthy Designer, Michael Edwards
Script editor, Betty Willingale Producer. CAMPBELL LOGAN Directed by JULIA SMITH
From the Midlands
Contributors
Adapted By: Alistair Bell
Unknown: Joyce Hawkins
Unknown: Gwen Arthy
Designer: Michael Edwards
Editor: Betty Willingale
Producer: Campbell Logan
Directed By: Julia Smith
Alexander Graham Bell: Alec McCowen
Jeannie MacEwan: Jean Anderson
Dr Ferguson: Larry Cross
Professor Bell: John Phillips
Mrs Bell: Barbara Cavan
Matthews: Jameson Clark
Ballachey: Hal Galili
MacDonald: Bruce Boa
George Brown: Robert James
Sarah Fuller: Susan Crawford
Mr Sanders: Peter Carlisle
George Sanders: Michael Crockett
Mr Richards: George Woolley
Mrs Connor: Elizabeth Begley
Mr Hubbard: John Wooonutt
Mabel Hubbard: Francesca Annis