For a few years after the electrics were introduced, the headshunt from Hyndland's electric depot usually had a J37 on display, which I assume was occasionally used to move units about (though I don't think I ever actually saw that happen!). This view, on 9th April 1963, shows 64558 and a 'blue electric' unit.
Location: Hyndland Depot
Original line: Glasgow City and District Railway
Photographer: Robin McGregor
Contact photographer: Robin McGregor
Date: 09/04/1963
Image number: 74326