Yorkshire's 150th anniversary celebrations got off to a shocking start when they were bowled out for 96 by Sussex on first day of the LV= County Championship season at Headingley.
And to rub salt into the wound, the visitors went on to reach 104-3 before bad light ended play early.
Surrey discard Chris Jordan returned Championship-best figures of 6-48 as Yorkshire posted the lowest total they have ever recorded against Sussex at Headingley.
Only four had been scored by the seventh over when Adam Lyth chopped James Anyon (2-24) into his stumps and five runs later Phil Jaques was lbw to a full-length ball from Steve Magoffin (2-18).
Jordan replaced Magoffin at the Kirkstall Lane end and his second ball was a rising legside delivery which skipper Andrew Gale feathered into the gloves of wicketkeeper Ben Brown to give him the first of four catches.
Anyon was rested with the splendid figures of 10-6-5-1 but Jordan struck at the other end as Lees, having scraped together six from 51 deliveries, chased a wide one and was caught by Brown diving to his left.
Jonny Bairstow took consecutive boundaries off Jordan to see Yorkshire to 40-4 at lunch but early in the afternoon he attempted to hit a ball from Anyon through square leg and only succeeded in gloving a catch to Brown.
Gary Ballance offered some resistance until a fine delivery from Jordan found the edge of a defensive bat and the same bowler had little difficulty in scything his was through the tail with four consecutive dismissals.
Ryan Sidebottom soon made the home fans feel more comfortable by trapping Luke Wells lbw as he pushed forward but Nash quickly put Sussex in charge again with the most positive strokes of the day, and Jack Brooks was made to bear the brunt of the assault, the opener smacking him for five boundaries off seven balls.
Nash dashed to his half-century out of 58-1 before Sidebottom returned to inflict further damage, first drifting one away from Mike Yardy to have him caught behind by Bairstow and then accounting for Nash in similar fashion for 80 off 87 balls with 13 boundaries.