Mike,You have some nice ones,the first pic- second row,the one with the orange stripe in the white,is it also a striped transp-?
Yes most of them have 2 seams,i've several with 1 seam and a few i can hardly see a seam.
The blue one that i posted in the calender threath has i seam.
I like this stripe transp- type of marble,they have something mysterious to me.