There's also a 'MID' leaf on the miniatures, but not on the full size. But if that's how they got to you, assuming your grandfather is no longer with us, then probably best left as they are.
Paddy and others, try dragging an image into a post. Should work now.
Here's one such image:
(That's a still from a Blue Peter episode where they used 2 of my coin images in a Penny Farthing Bicycle feature - earned me a Blue Peter badge!)
Not at all, thank you and so many others.
Still not there yet with the dragging image into post error issue, but I'm making slow progress - I think. It also affects the customisation of pages and keeps booting me out behind the scenes, very annoying.