AGFA watermark timeline
 

Hello David and Lance:
Is there a web site I could look at that would give me more information on the AGFA watermark. I am looking for a timeline for some of the photos that I own. Some have just the Agfa by itself and others have a broken single line above and double line below the Agfa lettering. I would greatly appreciate any help you could offer. Thanks again for your time!
Phil

All I know is if it has just 'agfa' it is from late 1950s or after. It it's got agfa plus another name (“Agfa Brovira,” “Agfa Portriga,” “Agfa Lupex” etc), it's earlier.