Mark Cranston and Ian Suddaby have spent the last 15 years collecting thousands of Scottish-made bricks from all over the world.

Part of the collection is stored in two large stables in Mr Cranston’s garden in the Scottish Borders; the rest is stacked outside Mr Suddaby’s house in East Lothian.

The pair have an agreement that if something happens to one of them the other will make sure their priceless collection is safe. However, they have now decided they need to find a more secure and permanent home for them.

Mr Suddaby, an archaeologist who lives in New Winton, told BBC Scotland News the bricks were an important record of Scotland’s industrial past.

“Brick-making is a very important part of Scotland’s history because we do have some of the best quality fireclay in the world for making industrial bricks.

“And this ties in with the industrial revolution and I think it should be promoted to a wider audience and that should be in some sort of a museum.

“My collection has completely outgrown my garden and the area around my house.”

The 61-year-old started collecting bricks when he noticed other archaeologists discarding them at digs.

“Bricks are under appreciated by archaeologists,” he said.

“Bricks hold historical value. Mark and I both have lots of bricks that are the only known product of sometimes quite major brickworks that employed a lot of people over many years.

“A lot of people regard bricks as thoroughly mundane and not very interesting and yet the people that start collecting them soon realise it’s an extremely interesting hobby.”

Among their collection is a special fire brick that was salvaged from the SS Politician, after it ran aground in the Outer Hebrides in 1941 carrying 264,000 bottles of malt whisky - inspiring the novel and film Whisky Galore!

There is also a brick that was retrieved from the execution block at Barlinnie prison in Glasgow, before it was demolished in the late 1990s.

The men own a Scottish-made brick recovered from an old gold mine in Washington state, USA. Their oldest brick is a drainage tile from 1833.

Their collection even out-numbers that of The Brickworks Museum - the UK’s only brick museum - in Swanwick, Hampshire, which has about 3,500 bricks. 

Mr Cranston says he has catalogued every Scottish brick, external they have found or been given.