The old Glasgow Subway has been captured in a recently unearthed clip of Blue Peter from nearly 50 years ago.

The BBC Archive released a clip of presenter Peter Purves taking 'a wee hurl' around the Subway in 1975 ahead of its first major modernisation.

Up until this point, Glaswegians had been travelling in the same trains since the system began running in 1896, with the only change being the ticket prices.

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In the six-minute footage, Purves visits the old St Enoch ticket office, which is now used as a coffee shop, to purchase his ticket before stepping onto a train. 

He then takes a seat before explaining that, unlike most underground systems in big cities, the Glasgow Subway goes in a continuous loop meaning "you'll always arrive at your destination." 

Conductors would ride on the trains with passengers, and take their tickets as they alight from the trains.

Purves explains that they have worn the same uniforms too, with details on the sleeves preserved in mourning for Queen Victoria who died over 70 years before. 

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Later in the clip, we are shown how broken carriages are taken to be repaired, with the time taken to remove one and replace it with another taking a record four minutes.

Speaking about the Glasgow Subway's 70-year stretch, Purves calls it a "great tribute to the skill of the drivers, the staff and the engineers for managing to keep it all going for so long."

Modernisation of the Subway began soon after the programme was originally broadcast, and now 50 years later it is in the process of being modernised again. 

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