14-11-2018, 09:18 PM
I have a very similar publication to Robert's but with the the words 'Issued by Vacuum Oil Company Ltd.' on the bottom of the front cover. Mobile and Vacuum Oil Co were/became one and the oil recommended throughout the publication is Mobile. As well as the Seven, it also covers the 12/4, 16/6, 20/4 and 20/6 models but not the '...latest production of the Austin Motor Co Ltd,' the 12/6, which would appear to date it late 1930/early 1931. On the reverse of the lubrication chart for the Seven is a similar chart for 12, 16 and 20 models.
Steve
Steve