Ah yes. I've also found the Alexandria to be a great fly on the Don and although rarely used on stillwaters nowadays ............. it can be extremely useful at Haddo 
Best wishes
Mike
Have used both an Original Alexandra & a Variant of my own, both with good success at Haddo in the past.
Alexandra Variant
MATERIALS:
Hook Size - 10 to 14 long shank
Thread - Black
Tail - Red cock hackle fibres
Body - Multi strand silver thread
Under beard - Red cock hackle fibres
Beard - Peacock sword feathers
Wing - Pheasant Tail feathers
Alex
