We have examples of another new slogan postmark in current use by Royal Mail, and advance notice of another for next week.
Announced for use for 10 - 14 March (but these are delivery dates) - Don't forget Mother's Day Sunday March 15th
North and West Yorkshire 9th March
Peterborough 6th March 2nd class, so for Monday 9th March delivery.
A postmark marking British Science Week is scheduled for 16 to 21 March; again these are delivery dates so we can expect to see the first use dated Friday 13th.
Thanks to Martin and Adrian, and local readers for supplying more examples which can be seen on Stampboards.
UPDATE 18 March:
Peterborough Mail Centre 13-03-2015
Thanks to Barry for this one; also seen in the same style from Swindon. Examples of the alternative layout have yet to be reported.
Remember also that the British Postmarks Database contains all these and many more right back beyond 1840, and more and better examples are always wanted if they are not already recorded.
ROC ~ Black Print Rooster ATM Labels - Republic of China (Taiwan) Black print Rooster ATM labels with machine code 111, from Keelung post office.