Simon Bourne was on a mission to track down the wartime pilot who lost his dogtag in the Thames.

East London Advertiser: Nathan Posener in uniform, 1918Nathan Posener in uniform, 1918 (Image: Thames & Field society)

The 31-year-old graphic designer wanted to return the silver identity disc to his family after he found it using his metal detector along the foreshore at Limehouse Reach.

East London Advertiser: Simon Bourne (left) 'returns' Nathan Posener's First World War dogtag to his grandson John SilvermanSimon Bourne (left) 'returns' Nathan Posener's First World War dogtag to his grandson John Silverman (Image: Thames & Field society)

That was a year ago. Now at last it is ‘Mission Accomplished’ after he managed to trace the family—with a little help from the East London Advertiser.

The tag he uncovered in the mud bore the name ‘N Posener’ with the Royal Flying Corp service number ‘19385’ from the First World War—almost 100 years ago.

Simon, a member of Thames & Field metal detecting and mudlarking society, turned detective and sifted through archives to find Nathan Posener in the 1911 population census aged 18 had lived at 292 Commercial Road in Whitechapel, close to the spot he found the dogtag.

The tag also identifies Posener was Jewish. His address in the Commercial Road was in the heart of the East End’s Jewish community.

“I don’t know how the tag ended up in the Thames,” Simon said. “Perhaps he was returning by ship and lost it overboard.

“Whatever the story, I’d like to trace his descendants and return it to them.”

The solid silver tag was polished and engraved on one side, the reverse being the ‘tail’ side of a French franc.

Simon was having what he describes as an average day on the foreshore when a fellow mudlarker, Jules, called him over to witness a Dutch coin he had just pulled from the mud.

The two then turned over a slab of concrete, scraped back the sand and discovered a French coin with the image of woman—Marrianne, representing Liberty. Two holes had been drilled through, so it had probably been worn on a chain, they assumed.

“The reverse side was polished flat and had an engraving that took my breath away,” Simon recalls.

“It bore a winged logo that read ‘RFC’ - N Posener - 19385 - Jew.

“We were both stunned and excited by the silver coin turned into a military identity tag. The Thames had preserved the inscription well.”

The RFC, or Royal Flying Corps, was the forerunner of the RAF and was created during the 1914-18 Great War.

Simon searched the National Archives which confirmed Posener’s ID number and that he served between 1918 and 1928. The 1911 census had Nathan Posener living at 292 Commercial Road.

“That address was close to where I found his dog tag,” Simon added.

“He and his father were tailors. But what happened to him after that, when war was over?”

The curious mudlarker contacted the East London Advertiser, hoping any relative or old friends might still be in the area.

“I didn’t have to wait long for a response once the story was printed and put online,” he revealed. “The reporter who ran the story phoned me after two weeks saying a reader had recognised the surname Posener. He got in touch with his friend John Silverman, the grandson of Nathan Posener.

“What’s more, his mother, Nathan’s daughter Teresa, was still alive at 90!”

Simon’s year-long mission was over. On a warm summer’s evening, he finally met Nathan Posener’s grandson in north London and returned his dog tag.

“It was a great feeling returning something that had been ‘lost’ for so many years,” Simon admits. “John by chance had spent a year researching his own family tree and the dogtag would take pride of place in his collection of memorabilia.”

Nathan was a Master tailor called up to design and sew the leather and fabric outer membrane of those early flying machines, the family told him.

He served in France on the Western Front which is probably why he used a French Franc for his dogtag that he crafted himself. He had industrial tailoring needles to work with and the creative skills of a Master tailor, perhaps hiring a jeweller to engrave it.

But the mudlarker still wonders how Nathan Posener’s Royal Flying Corp dogtag ended up in the Thames at Limehouse.

“The most romantic theory perhaps is that he threw it in after returning from the war, for whatever reason,” he says.

Nathan survived the Great War and lived to 94. He died in March 1987 in Hampstead where his daughter, now 90, lives today.

The dog tag has gone through a lot, Simon points out, from the battles on the Western Front to Nathan’s home in the Commercial Road, then churned around in the Thames mud for 90 years.

But returning it ‘home’ is something he appreciates few mudlarking ‘treasure hunters’ ever get the chance to do.