Fire1981 Posted November 1, 2025 Report Share Posted November 1, 2025 It seems like I see brown ones 99% of the time here. So here I go again. Does anyone have examples of blue, purple,white or green ones? I know there are no red ones. I’m trying to get better at figuring out what traits sets them apart from the Akro Slags🔥 RAR 1 Link to comment Share on other sites More sharing options...
Fire1981 Posted November 2, 2025 Author Report Share Posted November 2, 2025 Anyone ??? 🔥 RAR 1 Link to comment Share on other sites More sharing options...
William Posted November 2, 2025 Report Share Posted November 2, 2025 7 minutes ago, Fire1981 said: Anyone ??? 🔥 RAR I got a big green one that I posted in the Slags and Swirls Saturday thread... 1 Link to comment Share on other sites More sharing options...
Royal3 Posted November 2, 2025 Report Share Posted November 2, 2025 Big blue MFC 5 Link to comment Share on other sites More sharing options...
Fire1981 Posted November 2, 2025 Author Report Share Posted November 2, 2025 Is the hand gathered 9 in the last pic a common trait? Or is there another one that takes Akro out of the running 🔥 RAR 1 Link to comment Share on other sites More sharing options...
Royal3 Posted November 2, 2025 Report Share Posted November 2, 2025 Take whatever I say with a grain of salt, please…I’ve jokingly said I tell marbles apart by “smell” as I do it more by feel than anything after looking at these things for so many years, and I’ve forgotten a lot over the years. I’ll trust others to correct my errors. Akro did make hand-gathered slags early on, I believe just at their Akron plant. Their white for me tends to be more ‘ethereal’ i.e. less present and heavy than MFC’s, and thus whispier in the base glass. MFC slags were afaik all hand-gathered and machine-rounded, the process invented by M.F. Christensen, and have either a left-(harder to find) or right-hand twist and single cut line. The heavier white tends flow more on the surface and produce stronger, tighter, and frankly more interesting twist patterns. 1 Link to comment Share on other sites More sharing options...
crashbelt Posted November 2, 2025 Report Share Posted November 2, 2025 Pretty sure these are MFCs 1 Link to comment Share on other sites More sharing options...
marboman Posted November 2, 2025 Report Share Posted November 2, 2025 I'm thinking Mfc here, horizontal flow, prominent cut line opposite the nine ☺️ 1 Link to comment Share on other sites More sharing options...
Shamrock Marbles Posted November 2, 2025 Report Share Posted November 2, 2025 3 hours ago, Royal3 said: Big blue MFC Beautiful!! 1 Link to comment Share on other sites More sharing options...
Chad G. Posted November 3, 2025 Report Share Posted November 3, 2025 Not mine but here are examples of all the colors you asked for 1 1 Link to comment Share on other sites More sharing options...
marboman Posted November 3, 2025 Report Share Posted November 3, 2025 Great pic's Chad, and I see you have included the rare very very hard to find white MFC slag. If I read my copy of M.F. Christenson and the Perfect Glass Ball Machine by Micheal Cohill, the white slag marble was only run once. If I still had my copy I could tell you the date, but I sold it😒. I have some pictures I saved for reference. The first two pictures are from my collection, the rest are from the before mentioned book. Fire I hope you don't mind, I think we've moved beyond blue slags.☺️ last two pics are various oxbloods and some original packaging. 3 Link to comment Share on other sites More sharing options...
TheVacorFan Posted November 3, 2025 Report Share Posted November 3, 2025 Those are certainly unique, don't think I've seen those before... 1 Link to comment Share on other sites More sharing options...
Fire1981 Posted November 3, 2025 Author Report Share Posted November 3, 2025 WOW ! I appreciate all of the info everyone has provided here. I now have a better understanding of the MFC methods and traits of a MFC slags. Resorting my slags will be easier and tons of fun. Thanks again !!! 🔥🔥🔥🔥🔥 RAR 1 Link to comment Share on other sites More sharing options...
Royal3 Posted November 3, 2025 Report Share Posted November 3, 2025 Well, I guess we can put this “short tail” behind us then😉 3 1 Link to comment Share on other sites More sharing options...
crashbelt Posted November 5, 2025 Report Share Posted November 5, 2025 Mine came from this, I think original, solitaire set I found in. Scotland 30 years ago! Bob Block's book 'Collecting Early Machine-made Marbles' on MFC and Christensen Agate Co is great for this subject if you can find a copy. It was 2003 so presumably long out of print? 3 Link to comment Share on other sites More sharing options...
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