Yes, I'll try upload the photo.
They are marked separately, 'TOP' and 'BOTTOM', and nest into each other.
The good news is I see I somehow actually have the accessory 60x70 F145 BOTTOM, all I need is the F160 top !
(Although, the F145 botttom has a nasty chip in the middle of the lens. When printing it is so far out of focus that it is hardly visible, but maybe best to find a replacement for that one also)
Anyone any ideas. I'd be surprised if someone had this lying around, but maybe your local camera shop...
Thanks, W