Chad G.

I thought "Opal" was a Vitro name William ??

x2

I just added a link so you can take a look @ the different bases on an inky, sorry about being pokey. Ade bases react to uv light (Glow) inkys do not. The pic I added is just backlit to show the base color.

All above are all regular Rainbo's, once you have an inky in hand you'll never forget it. Generally the muddier the better as far as desirability goes. Here's one from feebay w/ a backlit shot showing the "muddy" base. As Ric said color can vary quite a bit between light and dark, a link showing some dark and light based inkys. LINK :: https://www.allaboutmarbles.com/viewtopic.php?f=7&t=38107&p=281983&hilit=peltier+inkys#p281983

"Happy New Year" ......💥 💥 💥

x3

"Welcome to Marble Connection Kathy" x2, I agree w/ Ric

Good grab Brother, I see a few nice coats in there, my fav.

No problem, burnin the Midnight oil well in 15 minutes I will be

Seam is common on Pelt slags (onyx), nice mib James

Never seen anything like em !! Cool !!

LINK :: https://www.allaboutmarbles.com/viewtopic.php?t=44956

Nice to put a face to the name Heath, thanks for the pic Brother

Jabo never made corkscrews, Akro is the only one to ever make corkscrews. Jabo did make a marble called a "Jorkscrew" that kind of turned back on itself. Not positive what you have in your OP just from the pix ?? LINK :: https://www.allaboutmarbles.com/viewtopic.php?f=7&t=46790&p=341181&hilit=jabo+jorkscrew#p341181

Akro Corkscrew, IMO

@ 29/32nds a Banded coreless for this "Thüringen Thursday" both unfinished pontil marks help date this piece to the late Victorian era, sometime between 1860,1870-1910

What a load !! Are they clay or glass Brother, I mean they look like glass in the first pix ??

Definitely not Pelt. looks like possibly a contemporary torchmade marble IMO, there are several artists w/ similar looking work. What's the size ?? LINK :: https://winlockmarbles.com/

Master Brushed patch would be my best too

x2, agree w/ Akro

Newer, not really sure of manufacture date, contemporary to me means newer artist handmade not machine made ??

(L) & (R) are foreign cats IMO, middle looks like it may be a Pelt Rainbo

Machine made cat IMO, more than likely foreign.

Alright, I recognize those calipers, a hair over 1/2", thank you Melissa. If you do end up using your other calipers, or ever need it here's a conversion chart link for you. Again, "Thank you" for the nice clear crisp pix LINK :: https://www.reade.com/reade-resources/reference-educational/reade-reference-chart-chemical-conversion/40-fractions-to-decimals-to-inches-to-mm-millimeters-conversion-chart

Both Akro, IMO