Davidson 530, one of the autographed range introduced 1962.
[Source:
Davidson Glass a history, by Chris and Val Stewart, 2005. ISBN 0-9550363-0-5]
More on Davidson glass on Chris's website here:
http://www.cloudglass.com :thup:
I don't think we've had these on the board before, may we add a copy of your photos to your post on the board for future reference please?