For John Hutchinson, it was the football equivalent of an archaeological discovery on a dig in Egypt.
In 2006, Hutchinson, the "curator" of the sporting memorabilia moved to the Walkers Stadium from Filbert Street, made an astonishing discovery in a cupboard.
What he found was a pair of 1920s football boots belonging to Adam Black, who set the record for playing the most league games for City – a statistic which still stands .
Hutchinson said: "Each boot weighed the equivalent of a bag of sugar and it was such an astonishing find.
"I wrote about the discovery in a match programme and it triggered a chain of events as members of his family provided me with more artefacts to create a digitalised account of Adam's life.
"More crucially, there is no danger of him becoming forgotten."
Black was born on February 18, 1898, in Denny, Stirling, and served as a corporal in the Argyll and Sutherland Highlanders during the First World War.
March, 1918, was a pivotal month in his life as Black was awarded medals for his bravery – and his football prowess.
Hutchinson said: "He played in the Argyll and Sutherland's football team on the Western Front and won a 51st Divisional Cup medal on March 20.
"The very next day he was cited for gallantry in the trenches and won the Distinguished Conduct Medal."
Back in Scotland at the end of the war, there were newspaper cartoons depicting him as a football-playing war hero.
Then, after a spell with Scottish Central League side Bathgate, Black, now 22, joined Leicester, snapped up by manager Peter Hodge in January, 1920.
A Leicester Mercury article headlined "A New Full-Back" announced the news.
It was a low-key arrival, but Black was to play a leading role in a strong period for the club.
In 1925, he helped them to win the Second Division championship and, in 1929, they missed out on the First Division title by a single point.
Black went on to make a record-breaking 528 appearances for City before his final contract expired in 1935 when he was 37.
Hutchinson also found paperwork which revealed that Black was paid £7-a-week in his last season, with an extra £1 when he played in the first-team. It was £6-a-week during the close season.
After leaving City, Black paid £800 for a newsagent and tobacconist shop in Wilberforce Road, near Filbert Street. He ran the business for 30 years.
Sadly, Black died in August 1981 when he was struck by a train at the age of 83.
Along with other war veterans, Black is being remembered this week by people throughout the county.
But he also has an extra-special place in the heart of City fans.