Amateur needing identification help please

[fhall]

Hi everyone!  I've been into marbles for about 2 months now.  My friend's father who is 79 asked me to help him sell his marbles.  I told him I would have to know what I'm looking at in order to do so.  So I have been studying and studying.  And now....I'm addicted lol .  I've come across a few that leave me stumped.  I've pretty much got down id through machine markings.  Patch and ribbons came easy to me.  But then I started studying swirls and slags!  My brain really gets twisted on those.  But I have a few pics of a few mins if I could get help with please and thank you.