Thelma Barlow worked at the Parnall Aircraft factory in Yate, which made aircraft parts. On 27 February 1941 the factory was bombed by the Luftwaffe. Many people died in the raid. Thelma Barlow survived, but this charred works pass was all that was left of her personal belongings. The pass can be used to initiate or develop study of the impact of World War II on life in Britain in terms of the experience of the war and changes in the role of women.