Sugino Grand Mighty Track Cranks Crankset 144bcd 170mm NJS Kierin.

For those that don't know - these are the stiffer, pricier brother of the coveted Sugino 75 cranks, in an awesome champagne-y color.

These are immaculate, used only on an indoor velodrome for a couple hundred km, if that. 
No real visible marks on them that I can see. 
All threads and tapers are good as you'd expect.

These cranks were over $500 new! ($390USD, ~$560AUD) so grab yourself a bargain for a quality crankset in pretty much as new condition. 

Pickup is available in Pascoe Vale, Victoria or can post worldwide.