The first images are fine. They could be made to blow up bigger, but I can see your piece now.
It
is a pulled ear, not a side stripe.
It doesn't even look like the same thing, in the different pictures.

Glass isn't easy to photograph well - it's 3-D, photos are 2-D.
The browny-yellow colouring would make it a fairly early piece - most pulled ears are fairly early. Give it a whirl on ebay, you'd probably get more there than at a boot sale. Sorry to have to tell you, you are not looking at retiring.

But you never know what might be lurking at the bottom of the next box, any more glass queries will be most welcome.