Thanks All for your efforts and advice.
It appears that Photoship no longer exists as some of you have said.
By way of background, the reason for my question was that whilst 'rummaging' some maritime websites I was reminded of the brilliant site Tyne Tugs etc. (
www.tynetugs.co.uk)
Just for fun, I looked up photos of the former famous Melbourne tug James Paterson (J. P. Rennoldson 1902) where there are six photos. Three of these are credited to 'Buster Browne', two to Allan Green (well known Melbourne maritime photographer) and finally the colour pic is mine but credited to Photoship.
The attribution 'Buster Browne' sounds dodgy to me and I think that his three credits are all, in fact, Allan Green photos.
Personally, I am not fussed by any of this - rather more honoured to have a pic of mine on Tyne Tugs but I was just curious as to the credentials of the apparently now defunct Photoship.
Geoff