It's Christmas time! "Last Posting Dates" slogans

Royal Mail has started using 'Last posting dates' slogans as we get closer to Christmas.  Both types feature a decorated Christmas tree and show posting dates for 1st class and 2nd class mail.  Collectors aiming for a complete collection should look out for a new type from 18th, just showing the 1st class date.

Norwich Mail Centre 08-12-2014

North and West Yorkshire 09.12.14

On square envelopes the stamp is often detected at the top left corner, and the elements of the slogan are reversed.  Thanks to Robert for this example from Tyneside MC:

Has anybody seen any similar slogans used 17-20 December with only the 1st class posting date - I may have mis-guessed RM this time as I haven't seen any.

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