What will all us die hard Machin collectors do now? Fill gaps? Start a new Machin theme?. Or move on with the times?
One idea is to start a Charles III collection, but not everyone likes the new definitive stamps with the added barcodes. You could start a new Horizon Label collection. These are now starting to appear in Post Offices around my area.
Below is a scan of what to expect, two of these were kindly given to me by my local post mistress. A unused tête-bêche pair of the new labels now on sale. I have no intention of collecting Charles III stamps so they will end up on eBay for a couple of pounds. A nice starter for someone.