De-accessioned: Records relating to Victor Cyril Sessin, engineer at Priestman Brothers of Hull > De-accessioned: Projections, plans and calculations relating to products produced at Priestman Brothers of Hull > De-accessioned: Calculations relating to products produced at Priestman Brothers of Hull > De-accessioned: Memo from V.C. Session at Priestman Brothers relating to the Mustang 90 Brake Effectiveness