Friends:
Salopian is the most wise voice here on slacum. The formula has been changed a bit over the years by Purdey. They used to sell it in tins, but no longer. And even they use it because..." they've always used it."

One thing more: According to the Purdey finisher I know, final rub-in application of the stuff involves an undisclosed element of human spit. Seriously.

Holland's and Westley's simply use Rapid Oil. Expertly applied.

Best, Kensal