Please help with the make of this bike

[Jlamm66]

This photo was taken in Ireland of my cousins father. Love to know what kind of bike this is. Thank you

[mini-me]

Model P Triumph was my first thought, but what an odd exhaust set up.

[Rex]

I had the bare-bones of a Model P some years back and that had a silencer reminiscent of this one, and the more I look at that pic the more similarities I can see. I reckon you could be right...

[cardan]

It's Triumph, but an unusual model. The LS was a unit-construction (crankcase and gearbox in the same casting) 350cc side-valve built in the mid 1920s. It was the only Triumph model with the magneto/magdyno behind the cylinder, so there was room for the funny muffler in front of the crankcase.

http://cybermotorcycle.com/gallery/triumph-1925/Triumph-1925-LS350-Ireland-2.htm

Leon

[Jlamm66]

Thank you all for the replies. I also thought Triumph but I could not locate any model with this odd exhaust set up

[chaterlea25]

Hi All,
Aha!! I saw a similar model at a show in Dublin a while ago, but did not remember it until reminded by Leon 

The registration "HI" is from Tipperary South,
Tipperary County was split into North and South "ridings" each having its own registration series
This continued up until 2014 would you believe 

John