Hello all, Just noting all the past chit chat about dating photographs. I wonder if someone who has the book "The Mechanical Eye" could look up 'Pardey and Guest', Dungog, for me. I have a photo that I think is my gg grandmother, but, of course, there is no name on the photo and it is hard to date. If I knew when Pardey and Guest were operating it would help. Many thanks for any help. Regards Judy