mark, you have it backwards. the OPTON and CARL ZEISS (sans JENA) lenses are the ones which only occur post-WWII. in other words, it was in the period after the end of the war that some lenses marked "zeiss" *stopped* bearing the "jena" designation. --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list