A) It would appear that your rifle was made by BSA between the two World Wars. It is a Light Pattern Standard model in .177 calibre, which was despatched from the BSA factory on 2 August 1922. It was a model designed for target shooting and intended for young people and ladies. The Lincoln Jeffries Company made a very similar model before the Great War, which they sold as the “Ladies’ Pattern”. It proved to be ideal for pest control and many thousands are still in regular use today. The number “1” refers to the calibre, No. 1 being .177 bore.