The owners of a cast-iron plaque, that has been passed down through generations of a family, are seeking information as to what it is and who made it.

Mrs Patricia Tonkinson (58) and husband Roger (63), of Ridge Avenue, have kept the plaque in their garage for more than 10 years. With renewed curiosity as to its origins, Mr Tonkinson took it to Queen Street Mill hoping one of its experts may be able to reveal its secret history. However, while some staff at the mill had plenty of suggestions, no one had any concrete information.

About 10in. in diameter and painted black with gold lettering, the plaque depicts two women working at looms. It is in good condition apart from a small amount of rust on the back but there is no date or manufacturer's mark. The lettering reads: "God speed the loom".

The couple came into possession of the item following the death of Mrs Tonkinson's mother, who lived in Lower Manor Lane.

The family has also lived in Cornholme and Wales and believe it could have belonged to Mrs Tonkinson's grandfather. Mr Tonkinson is confident the piece comes from a cotton-making town, possibly Burnley, because of the looms. "Someone at the mill said it might have been made as a present to workers.

"It's a nice plaque made out of cast-iron, and the detail is terrific. I looked it up on the Internet and couldn't see anything even resembling it. Nobody knows what it is."

The Tonkinsons and staff at Queen Street Mill are hoping someone will recognise the plaque and be able to offer some clues as to its history.

Anyone who thinks they have information can telephone the mill on 412555.