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Well, expecting the answer from the esteem Forum Expert,I would not dare to bother the one with such a common, run of the mill capacitor photogragh. As I recall, way back there had been a similar inquiry of mine (nickel plated copper Sprague caps), and at that time I had impression that these particular capacitors are very familiar to the latter, hence no picture needed.
Meantime,as you well aware by now, I am trying to stay as close as possible to the original issue, so cutting and gluing, having the seam on the plain site, is unacceptable, but thanks for the advice all the same.