Assembly ships nearly always carry a striking and colourful scheme, and with this in mind DN Models have released a Assembly Ship Camo and Insignia Paint Mask Set for the B-24D Liberator, serial 42-40127 known as “First Sergeant” in 1/48th scale.
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/first-sergeant-b-24d-camouflage-mask-set