LAST week’s object was a wooden trap, used for a game called knurr and spell.

Several readers made correct guesses, including John Harrison, of Skipton, Walter Chaney, of Grassington, HJ Hill, of Settle, Ronnie Stott, Ronald Crossley and Geoff Hanson, from Cross Hills, Steve Pickles, of Glusburn Moor, Brian Appleby, Beryl Dodsworth and Annette Wetherell.

Experts from Craven Museum and Gallery tell us: “The trap is stuck into the ground using the spikes on its underside. A small ball (or knurr) is placed onto the small dish on the right hand side of the trap, which, when triggered, fires the ball about one metre into the air.

“The object of the game is to hit the ball with a one-metre-long stick called a spell.

The aim is to see how far the ball can be hit.

“Each player plays individually and without interference from opposing players, and there is no limit on the number of those that are playing at one time. A good hit could propel the ball around 200 metres.

“For this reason the game was usually played on a large moor.

“The game originated from Yorkshire and was played as early as the 1500s.”

The game around Barnsley was known as “Potty Knocking”.

All Craven Curiosities can be viewed in Craven Museum in Skipton Town Hall.

Meanwhile we are now inviting guesses on this week’s mystery object Suggestions should be emailed to news@cravenherald.co.uk