Two unmarried brothers are seeking an heir to take on the world's largest cuckoo clock collection.<br /><br />Roman and Maz Piekarski have spent five decades sourcing 750 pendulum-driven devices, which they display at their 'Cuckooland' museum.<br /><br />But as time ticks down on their careers, the eccentric siblings - who have no kids - are now desperate to find someone to take on their metronomic hoard before it’s too late.<br /><br />Roman said: “I’m 71 and Maz is 69, and we have not got anybody to leave it to. <br /><br />"It’s the world’ s largest collection – and we have 750 of them.<br /><br />“It would be wonderful if we could get someone to take it on, it really would be.”<br /><br />Roman and Maz said they’d become fascinated with clocks as teens and went into the trade as apprentices after leaving school at 15. <br /><br />But at just 28, Roman got the devastating news he had the neurological disease multiple sclerosis (MS) - and was given just three years to live.<br /><br />Not wanting to saddle a family with his sickness, he didn't get married and instead pursued his passion for collecting cuckoo clocks with Maz.<br /><br />And the brothers then went all around the world hunting down unique timepieces while trying to beat rival collectors from the US and Germany.<br /><br />But after amassing the world’s largest collection at their museum, in Tabley, Cheshire, they now have no sons or daughters to leave it to.<br /><br />Roman said: “When I copped MS I said to my brother, I’m going to stick with what I’m doing. <br /><br />"I wasn’t going to get married because I didn’t want to burden anybody.<br /><br />“I was given three years to live, but I’m still here today - 43 years on.<br /><br />“For the last four years, I have been making small inquiries as to finding a body who could take it over. But I’ve not found a single person who could come in and run it.<br /><br />“I’ve just about got it in me to teach someone how to do the guided tours and about the clocks and the different stories.<br /><br />“And my brother’s got time to teach someone about doing the movements.<br /><br />“But unfortunately, the youngsters of today tend to press buttons on a computer. And there are no apprenticeships anymore anyway.”