Here's a fork from a 1983 Cannondale ST. It's been around the block. Originally dark slate color, blades have been resprayed...badly.
Still, a unique sloping crown Tange fork. 83 was the first year of production for the ST and in 84 went to a flat crown. Steerer is for a 56, I can measure exact if anybody is interested. Threads in good shape. 26.4 crown race. No dents or dings that I can find.

How's $25 plus shipping sound? CONUS PayPal. shipping shouldn't be much, I'm guessing.

ETA: I also have the frame this fork is from. It's in rough shape. Someone drilled two small holes in the seat tube, overclamped the seat binder, then used a screwdriver to get a seatpost unstuck (I think). I was planning on scrapping it, but if someone buys the fork and wants to give it a shot at restoration, I'll throw in the frame for FREE. Just pay shipping plus the price of the fork. I love these early CDales, and would love to see someone restore the frame.