https://hullkr.virtualmuseum.uk/publications/v/viewer/books/pdf/ITSSRVR04_Bridgehead Workshop_1931-32_001.pdf
1930-31
https://hullkr.virtualmuseum.uk/publications/v/viewer/books/pdf/ITSSRVR04_Bridgehead Workshop_1930-31_001.pdf
1929-30
https://hullkr.virtualmuseum.uk/publications/v/viewer/books/pdf/ITSSRVR04_Bridgehead Workshop_1929-30_001.pdf