Burying a time capsule to mark special occasions is a tradition many schools across Perth have taken part in.

But how many of the schools actually recorded where the capsules were buried?

At least four primary schools across Perth have tried in recent years to recover their capsules, only to realise they have no idea where their little piece of history is hidden. 

Warriapendi Primary School principal Peter Jakimowiez told Mornings on Radio 6PR volunteers at the school had been unable to locate two capsules, likely buried in 1979 and 1988.

"The first one, what we understand is it was buried [for Western Australia's 150th anniversary] in 1979, and the second one, possibly in 1988 for Australia's bicentenary – can we find them? No," he said.

"We do have some staff here that were here at that time... but memories have faded, buildings have changed and paving has gone down.

"There are quite a few companies out there who do scanning of the ground... it doesn't come cheap, but if we can narrow it down to a smaller area then certainly it's worth us having a crack at it."

Mr Jakimowiez said he believed the Balga school was not the only one to fail to document the location of its time capsules, with many students across Australia taking part in the 1979 commemorative activity. 

Former students at Karrinyup Primary School tried to find their 1979 time capsule for the school's 50th anniversary in 2014, even using a metal detector to assist in the search – without any luck.  

Melville Primary School's capsule could, according to a 6PR listener, be buried under what is now parkland while Gibb Street Primary School in East Cannington has also reportedly lost its capsule.

Mr Jakimowiez is appealing for any ex-students or teachers from Warriapendi Primary School who may remember where the capsules are buried to contact the school. 

Originally published on WA Today as Perth school appealing for help to find lost buried time capsules .