My beloved white cat went missing in 2017. He sadly wasn't chipped as the rescue I got him from weren't able to do it (they tried several times but his neck was very thick and muscular and when I went to collect him the chip was sticking out and he was very distressed) and he managed to get out and disappear before I could try and get it done somewhere else. I kick myself every day for not being quicker and for wanting to let him to settle in before I took him to the vets for it.
Anyway, I've seen a post from a rescue about a stray cat they've taken in. He is the spitting image of my white cat, however he has a couple of faint blackish/grey patches of fur at the front of his head.
I know I'm probably being daft, but would it be possible for his fur to have changed in the last year and a half? There's not been any sightings of him at all since he went missing, so it's possible he could have traveled or got into a van or anything. I would hate to miss the chance of being reunited if his appearance has changed slightly.