Dust gatherers that I cannot identify at all...please help!

Having failed to figure out how to upload pictures on here, I'm going to try and post links instead. Hope it works!

Puzzler #1 The marks are in the second pic.
https://2img.net/h/i963.photobucket.com/albums/ae113/Daisy-Blue/DSCF2519_zps2b4299e6.jpg
https://2img.net/h/i963.photobucket.com/albums/ae113/Daisy-Blue/DSCF2514_zpsd1d683a3.jpg

Puzzler #2
https://2img.net/h/i963.photobucket.com/albums/ae113/Daisy-Blue/2OrangeJugs_zpsd27c2de2.jpg
https://2img.net/h/i963.photobucket.com/albums/ae113/Daisy-Blue/Orangejug1_zpsd3f4cdc4.jpg
https://2img.net/h/i963.photobucket.com/albums/ae113/Daisy-Blue/DSCF2481_zpsb48b6ef2.jpg
https://2img.net/h/i963.photobucket.com/albums/ae113/Daisy-Blue/shintoJug_zps8f8b62fa.jpg

Puzzler #3 Has 2 marks, one on the bottom and some raised dots(?) on the side. Has a beautiful cobalt colour inside the pot too.
https://2img.net/h/i963.photobucket.com/albums/ae113/Daisy-Blue/DSCF2505_zps6def7279.jpg
https://2img.net/h/i963.photobucket.com/albums/ae113/Daisy-Blue/DSCF2500_zps89c8d74f.jpg
https://2img.net/h/i963.photobucket.com/albums/ae113/Daisy-Blue/DSCF2498_zpsa41bfd5c.jpg

My photography isn't the best. Thanks for any helpful ideas or suggestions.  

I love the lidded pot, just gorgeous! Can't help with any of the marks sorry, though would speculate that the lidded one is 'T C'.   

I can give you some tips on photographing pottery marks though, as it is a tricky business.

Firstly see if your camera has a 'macro' setting - this is usually a button with an icon that looks like a tulip flower - most cameras these days have one. This will allow your camera to focus on close up objects.

Secondly, make sure flash is off, and take photo in natural light (doesn't need to be direct sunlight). Sometimes experimenting with angling a difficult to see mark will help it show up better.

Experiment a little with taking photos of marks at different distances, sometimes it is easier to take a photo from slightly further back, then crop the photo later to show detail better.

Thanks for the photography tips Cat - I borrowed a camera and of course, was totally unfamiliar with it all. It shows, huh?  

Yes, I love the lidded pot and it's intense cobalt blue interior is gorgeous as well. It's definitely a keeper for me.