We've featured plenty of vintage flip clocks in the past, but this large 1970s flip wall clock by E A Combs is up there with any of them.
Made by E A Combs of London, probably in the 70s, but possibly sneaking into the 80s, it's a large item, around 17 inches across, with the date and time and battery power to keep it ticking over. Downside? At 5kg+ in weight, you'll need to secure it well if you want it on your wall.
A few bids, but still well priced at £31.