Lancashire captain Glen Chapple says bowling out Essex for 20 in the County Championship was "unbelievable".
The Red Rose ripped through Essex in their second innings with Chapple (5-9) and Kyle Hogg (4-11) starring.
"There is no way to describe that. Things don't happen like that, maybe once in 20 years," said Chapple.
"It's unbelievable really and in the context of the Championship it's a great win for us. It's something that sticks in the memory for a long time."
"We bowled well but you need the rub of the green and the pitch started to get a bit tired," added Chapple, who recently took his 900th first-class wicket.
"Things like that give you confidence but we just did the basics well."
The 39-year-old also ran out Essex captain James Foster after earlier hitting a half century as Lancashire totalled 398 to earn a lead of 125 at Chelmsford.
It took Chapple and 29-year-old Hogg just 66 minutes to skittle the Essex batting line-up as they posted their worst-ever score - the lowest in the County Championship since 1983.
Hogg told BBC Radio Lancashire: "I just kept looking at the scoreboard thinking 'is this actually happening?'
"It's funny what pressure does to you but we put them under a lot of pressure with the bat, so we thought, if we could get some early wickets, we could put them under pressure again.
"For all the bad days you have these are the days you remember throughout your career.
"2011 [winning the County Championship] was something special, but I think today, bowling a team out for 20, and you look at their batting line-up on probably one of the most batter-friendly pitches in the country, it's just a once in a lifetime thing that happened."