I had to buy this: Dambuster Lancaster & Commemorative Coin. DAMBUSTERS_BUNDLE_1500_x_938.webp%3Ffit%3D1 The Commemorative Coin look great. I also like PR planes, so the Mosquito came along: a04065_1.webp%3Ffit%3D1
A little late but do you mean: "Battle of Brittain Memorial Flight"? Then the instructions can be fund here: https://www.scalemates.com/kits/airfix-a08013a-avro-lancaster-biii--1121420