My dear departed Mormor loved Viking sewing machines, claiming she could sew stainless steel roofing together with hers.
It was a grey day in June when she actually tried this one year. She was doing alright, pumping the treadle like the hounds of hell were after her, she was well down one long run, making new roofing for my igloo when the unspeakable happened: the needle hit a hard spot and the whole works went sideways, catching her thumb in the machine and stitching right across the nail.
She shrieked, stood up with the Viking hanging from her bloodied thumbnail, and let loose with a string of Norsk expletives to turn your hair blue.
Remarkably, the exact shade of blue In the OP's lume shot.
How's that for bringing this back on topic?