A rare Zuiko 135mm made in M42 screwmount for the excellent but short-lived Olympus FTL SLR released in 1971:
135/3.5 OLYMPUS E.ZUIKO IN PENTAX THREAD FOR FTL,105084 - eBay (item 120249322816 end time Apr-28-08 16:06:54 PDT)
This is a great lens with superb optical quality. It's extremely compact (one of the smallest 135mm in my collection) and has an useful built-in lens shade.
Unfortunately, the text of the auction says the glass is "slightly hazy." The seller, Pacific Rim Camera, is very knowledgeable, so I would advise prospective buyers to inquire first before bidding.
There's also an Olympus FTL complete with the Zuiko 50/1.8 lens:
Olympus FTL 18/50 Zuiko Spiegelreflexkamera mit Tasche - eBay (item 150237695830 end time Apr-27-08 12:55:21 PDT)
Cheers!
Abbazz