Hi Backyardhabitat and welcome. That is a nice Peter Goss piece, showing clearly the influence of Sam Herman. The scroll under the name is common on his earlier pieces. See the fourth photo in reply #10 by Ross. The piece from 1977 in the second photo of my Reply #5 also has the same scroll under the signature.
The date on yours will not be 1971 because that is before Peter Goss started in glass. At that time he was still serving with the Royal Marines. It could well be 1977 or 1981, and I think the former is more likely. The marking in your photo is too indistinct on the screen to be sure. If it is 1977 it will be a more desirable piece, because it will have been made at the Jam Factory in Adelaide under the direct influence of Sam Herman.
Value? Whatever someone will pay for it. It is small but a nice illustration of its context. At auction, maybe up to $100 in Australia, less elsewhere.
Thank you for sharing. Any chance of clearer photos?
Trevor