hooks on a corset

hello, I've got a question: much antique corsets have a hook on or at the busk area. why are they on a corset and why that area? this is what I mean, a hook at the 4th busk clap from above and at the back also at almost the same high greetings, Frank

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Anyone know what the metal hook thingys are for? : r/HistoricalCostuming

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How tight should a corset be? I want to make my waist look 3 inches smaller. Is it safe to tie my corset that much? - Quora

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How tight should a corset be? I want to make my waist look 3 inches smaller. Is it safe to tie my corset that much? - Quora

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