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Based on the Foster Yeoman class 59 that had been around yonks prior.

Apologies I spelt Beattock as Beatcock. My bad.

A4 Pacific's is what every TV programme refers to them. Not sure what previous name they may have had. Pacific's was the name as your title they were A4's. So A4 was part of the name.

2) No idea but GK pub in Bearwood is aptly named The Bear Tavern.
9) A4 Pacific class locomotive.
11) Beatcock and Shap
14) Birmingham