odd tyre wear on classic

has anyone had this problem before or perhaps know the cause.
my nearside front tyre on my 92 lse is wearing on the outer edge, cant see anything obvious, and the car handles as usual. any advice would be very helpful.

I find this on my P38 and also on my old TD5 I think its to do with turning left. Each time you turn a tight left corner, you leave a little bit of rubber behind. I regularly check tyre pressures and these are usually normal (28 psi) and tracking is spot on. Caster and camber angles are fixed by the solid axle arrangement at the front so I can't really see any other reasons. JV ROVERMAN

ok, thank you for that.i shall just have to keep rotating the wheels on a regular basis to get an even wear out of them