willong
Well-Known Member
Turning would normally erase that seam, though I have seen a few where it was not totally obliterated. In those cases, the seam is still visible, though muted, not sharp.This is interesting, the turn in the mold. And the turn would erase the seam marks including the one at the top of the cylinder?
I'm thinking a couple factors could affect the appearance of the horizontal seam. One might be how tight the mold itself was constructed and how much use it had endured. If sloppy construction or heavy wear of the mold resulted in a higher and wider seam in the glass before the bottle was turned it occurs to me than more seam might remain visible after turning. I am also thinking that how quickly the glass blower turned the bottle, thus its temperature and plasticity, might contribute to the final product's appearance.
If any glassblowers are reading this, I'd be interested in their input.