Is that a steamer trunk? Could be a “toggle latch”.
https://www.mossman-trunks.co.uk/32-parts-trunk-fittings?srsltid=AfmBOorNYQRoEJigwEuhJHsfAVnFhX-aP4kl2Yf4SS-xQ-gNMGku5Gg-
It is an old carpenter's tool box, I thought the centre round bit released the sprung catch but it doesn't!
@Thope started
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Is that a steamer trunk? Could be a “toggle latch”.
https://www.mossman-trunks.co.uk/32-parts-trunk-fittings?srsltid=AfmBOorNYQRoEJigwEuhJHsfAVnFhX-aP4kl2Yf4SS-xQ-gNMGku5Gg-