Now, here’s a spring bulb with a difference, and two bright sparks to help hold it up.

Schoolboy brothers Robert and Sandy Still had their hands full in 1959 when they visited a lighting exhibition at Glasgow’s Kelvingrove Art Gallery and Museum.

Whether the giant bulb was the real thing – possibly for a lighthouse – or just a model, we’re not sure, but from the look of delight on the boys’ faces, we suspect they are imagining the fun they could have with an equally large torch. Having said that, it would probably take a least a year’s pocket money to buy the batteries to power such a mighty light source.

And more to the point, if the bulb were to blow, how the heck would you be able to lift it up to your ear to shake it to hear if the filament had gone?

Somehow, we can’t imagine one of today’s low-energy bulbs causing the same excitement for modern school kids.

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