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I have been told that the amount of space or distance between the holes of the shear or shear knife plate can affect if the shear marks shows or not. This has to do with the glass stream folding or piling before the next shear or cut is made. Most Jabo marbles show no shear mark,cut line or seam. Most shear blade type used at Jabo. Extremely hard steel. But Griff,Bruce Burkhart and myself produced steady repeated single cut line and double cut line marbles plus the regular no cut line marbles at Jabo one night for a 12hr period. All 5/8 size and made on the same exact set up of the tank,orfice,stream length,same shear,same shear plate knife,etc. We made no switch of any equipment and made over and over,single cut or seam and double cut or seam and no cut line or seam swirls. More than one witness,five of us there operating the machine at Jabo most of the night. One person did leave about midnight. The other four of us were there for all night,until Dave and the other investors returned to finish the 3/4 inch run. The only change we made was the position of how the glass stream first entered the shear opening. We made single cut or single seam marbles repeated one after another and no hand gathering. We also made double cut or seam marbles and swirls with no cut or seam showing. All with no equipement change. So there is a WIDE range of things that can affect if a cut line shows or not at all and what the line may look like. Griff may or may not want to add any comment to this ?

Bottom half of Alox one inch shear.

Alox shear for one inch. Alox shear rings and Jabo shear plate.

Alox shear

Alox shear for one inch marbles.

THANK YOU great information !!!!!!!!!

Yes they were manufactured. Yes they were sold by the company. Yes they were also all excavated. A Blue Lady is listed on ebay right now. Correct you do not see many for sale. They are cheap for how many are offered for sale. Several Alley squirrels in the woods nowdays.

I agree,THANKS for clearing this up.

I am about to be a believer. The DAS Rams Head or Peltier Miller swirls could be interesting ? Thats definately two new seperate threads. Dave has his can opener sharpened. I need to get some more popcorn.

I probably should stay out of this and just see where things fall. It may be of help or maybe just more confusion ? Was this equipment made or used to produce the feathered slags? There are so many variables to take into consideration and limitations with glass temperature. I was glad to see in the patent that it does mention the length of the glass stream from the exit of the furnace to the shear. Does influence the final pattern or look of the marble. I have said this for several years. Within limits of glass temp. and space. With a longer glass stream from the furnace to the shear. As gravity pulls on the glass more rotation takes place with the glass stream,making a twisted swirl pattern. I looked at 44 of my feathered slags just as a sample group. Just curious of the percentage of swirls and non swirls. With my sample group 31 were definate swirls twisted around the marbles,most times in a cork pattern. The remaining 13 were definate non swirl. These 13 made straight lines or patterns from a cut line right back around without twisting. Returning back to almost where it originated without much or any twist at all. So were the featherd slags made with a short stream,long stream or both ? . Many of the feathered slags exhibit nice flames. Is this due to the glass piling on the shear plate before being cut ? This may happen or may not happen due to a long glass stream length. Most shear stroke speed can be adjusted to cause or eliminate piling. The size or diameter of the glass stream can be increased or decreased to cause or eliminate the glass piling on the shear plate. Some of the feathered slags flame nice and some do not,more do not. If the vintage makers could control the production of flames. I think we would see larger numbers of them from all the makers that produced flames type marbles. I feel sure that the flame type marbles were also more popular with the children of the day. With marble production that i have witnessed steady since about 2000. At three different locations with many different tanks and machines. I have never seen anyone yet produce flames in any steady predicable manner. Not that it has not been tried in many ways,including piling of glass on the shear plate. The flame pattern will usually appear while making swirl type marbles. Usually for only a short time and may or may not appear more than once or twice in a twelve hour period. Most often the flame pattern appears more when the furnace or tank level is lower. So was the longer glass stream used for feathered slags ? More of my random examples the color striping does swirl or twist. But Not all. Was the longer stream length used to make the named Miller swirls ? Most of my feathered examples have the color striping close to or more near the surface of the marble. If the glass stream piles on the shear plate more of the color striping goes into or ends up on the inside or center of the marble. When the glass stream piles it does so in layers and the majority which is visible is only the edges of the color striping. With most of my feathered slags the color striping looks to be laying more flat on or near the surface. Including the ones which have the flame pattern. I agree that the feathered slag pattern is more on or near the surface wraping around the marble, Not piling and folding over on itself again and again. A short glass stream length can fold over on itself one time. You see this with the Jabo butt crack,the Vitro V,the Cairo C,the last years of Alley. Even in the lesser number of feathered slags. I think probably all the straight ribbon marbles were made with a short length glass stream. I agree that probably chunks of white glass was used for striping. As it melted slowely it would make thin stretched lines as it traveled to the discharge and end up on or near the surface of the final marble. I am not so sure that this equipment was designed to make the feathered slags.

Sistersville WV.

Couple more Sistersville Alley

Sistersville Alley

There is another Peltier Surfer that has surfaced in OH. Now we have a Peltier Green Surfer. It is a clear base,green and white ribbons. It has green av in the green ribbons. It has silver av in the white ribbons. Who will find the Purple Surfer ? This new Green Surfer is also about half swirl. It has the usual Peltier cut line and straight ribbon pattern on half of the marble. On the other half of the marble the ribbons curve twist swirl and the cut line almost disappears. Probably a worker made half of it on the old Miller Swirl Machine and then made the other half on the newer regular Peltier machines. I hope no one takes the previous sentance as true,LOL !!!!!

Many of the Jackson marbles glow and helps with identification. If you have a dirty white or creme colored base with red swirl and it glows. It is probably Jackson. If it is creme or off white base with a more orange narrow swirl. It is probably Davis. The creme color or dirty white is a certain limited Vitrolite cullet used only by Jackson,Davis and Playrite. The more bright white on Jacksons does not glow. There are several swirls which are unique to only Jackson.