Ann: Killanoola Activity and Innamincka Revenues, page-230

Just googled it for fun

in a few weeks time
"A few weeks" typically refers to a small, unspecified number of weeks, usually ranging from three to five weeks. It is a casual and imprecise way of expressing a short period of time. The term 'a few' doesn't have a precise meaning, although it is sometimes taken to mean three.

in the coming weeks
"In the upcoming weeks" is a vague phrase that typically refers to the near future, but it doesn't specify an exact number of weeks. It could imply anywhere from a few weeks to a couple of months, depending on the context in which it's used.