Carl Zeiss Jena Ni 030 Surveyors Level in Wooden Transit case. German GDR Zeiss
Has Carl Zeiss Jena makers plaque. Must be pre 1990 ?. as marked GDR. Under side Made in the GDR. In correct box - owner has numbered '7' on underside and 7 painted on lid. Looking down wrong end I can see a little dirt.