NOS on Ebay and accepted Buy It Now - $100.00 shipped, crank, cotters, rings, and bottom bracket - all original and all new when I got them...
The head set, again Legnano but this one was used, showed up on Ebay for a very low price. I bought it immediately. The seller asked to be allowed to cancel the deal because he made a mistake in the price. I objected but felt bad about it. He said he understood and that he would get the head set mailed the next day (he could have just cancelled). At that point, I offered to pay more but he refused. An honest man, to say the least...
The owner of a local bike shop needed a set of Campy Record high flange hubs for his Cinelli. I swapped him a polished set that I had, for a complete dirty Campy high flange wheel set that he had come in with an old ALAN. Turned out the hubs were kinds special - a fluke and, yup, Legnano again...
And, my biggest impulsive purchase ever (remember, I often get bikes for free - locally), a late fifties Rabeneick frame and fork...
And my latest impulsive buy has not arrived - yet (pics might follow)...