Hi Owen,
Perfect example. This pipe has a cursive or script Barling logo. No apostrophe and no "s". This change of nomenclature came about as part of a revamped line that was announced in November of 1962. By this time, Finlay had removed the Barling family from any active role in running the company, and brought in management from their own company. In February of 1963, Finlay would be absorbed by Imperial when Imperial exercised its option to purchase the rest of the Finlay stock it didn't already own.
People think that somehow the quality immediately went down, but that's not exactly the case, and while the quality eventually did suffer due to the increase in product ranges and productivity, a lot of excellently made pipes continued to be made in the two Barling factories.