nonplumbing work; a nonplumbing firm

And morning after morning, all over the immense, damp, dreary town and the packing-case colonies of huts in the suburb allotments, young men were waking up to another workless empty day to be spent as they could best contrive […]

Don't be afraid to kick it around a little. It is sturdy.

The regular umlaut with the dieresis dots originated from a form with two vertical or slanted strokes (not unlike the hungarumlaut speaking in typographical terms).