The salt is certainly an unregistered Henry Greener design, and the trademark is indeed the 1st lion TM.
Here are a couple of photos of an example in purple marbled glass for comparison.
So far I have reference photos of about 40 unregistered Henry Greener patterns (many of which have come from Mike) but I haven't put any of them on the GMB databases so far as I was trying to build a reasonable personal archive first.
BTW, the pattern number 025 referenced in the photos is purely my own reference number and not an 'official' Henry Greener pattern number.
If there sufficient interest, I will ask Anne to set up a new category for Unregistered Henry Greener (and Greener & Co.) designs in the GMB databases.
Fred.