Are these slags and perhaps continental

[Edward]

thanks for looking. The blue and white one reminds me of the shot of the earth from the first moon landing episode. Have no idea as to where and whom

[Melissa]

First two are German 

[akroorka]

Here is a thread that may relate to your second and third marbles.

https://marbleconnection.com/topic/20463-japanese-transitionals/

Marble--On!

[Edward]

Thank you so much Melissa and a big thanks to Akroorka for the link.

[I'llhavethat1]

1st pic are nice but not slags.

[Chad G.]

No slags ::

#1. German Handmades

#2.Transitional 

#3. transitional

#4. Veiligglas

2-4 are best guesses based on the pix provided 

[Fire1981]

I think you’re 2 German Hand Mades have color combos and cores that kinda set them apart from some of the more common Hand Mades. I wish I knew more about specific traits. I think the one on the left is killer 🔥

RAR