http://www.ebay.com/itm/Curta-Type-I-/190686157645?pt=LH_DefaultDomain_0&hash=item2c65c7db4d

Serial# is 42512, vintage March, 1960. The orange sediment shown in photos is from the leather case. This CURTA Type I should make a perfect addition to a serious collector. It is in very GOOD shape and perfect working condition. Everything operates smoothly. See attached Pictures. Leather case shows its age and has no buckle hardware. Case still carries a attractive odor of fine pipe tobacco.