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I am having difficulty discerning the hallmarks on my newly obtained pointer.

My internet search is giving me possibly: Jonathan Howell, London 1910

I read it as J. Howell in triangle, small 't", lion, then a "blob" that I cannot determine.

Any help is much appreciated.

The maker's mark look like Jonathan Howell. See also: http://www.925-1000.com/forum/viewtopic.php?t=32067
I can't quite discern the date letter. It could be "l" = 1906 or "t" = 1914 (1910 would be "p"). You can check the date letters here: https://www.silvermakersmarks.co.uk/Dat ... -1915.html
Lion passant is the assay mark and "blob" is the London city mark lion's head.

Thank you for your reply - very helpful!