Merry Christmas, indeed (it's already approaching lunchtime here near the dateline).
Does anyone know about the history of this priceless document? The outer parts are a very good representation of British Official, c. 1940s, but it has also been perhaps expanded by a non-native speaker ("barb" for "beard", "one time" for "once", more than one time). Does this show that the original manual was revised for use by a multi-national sleighforce?
Be festive.