Can you help to identify these frames, bikes or parts?

Evenin', yeah the frame number matches the number on the steerer tube, so they are original, so I'm pretty convinced now... I know on the head badge, crazy money, but a proper finishing touch...

I'm talking to a gent right now who has original 531 Special decals and repro head badges which are accurate stampings from new tooling - painted after production to original colours. As you say, they're not cheap, but I'm considering it, just because it'd give it back its heritage. Let me know if you want the contact...

not even stickered mine back up yet......took it back down to bare metal after someone hammerited it and it was about to hit the tip. maybe something to think about