DN Models are soon to release a mask set for HK Models 1/48th Lancaster covering the insignia and markings.
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/lancaster-insignia-and-numbers-paint-mask-set
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/lancaster-insignia-and-numbers-paint-mask-set