OPTICAL RETICLE CROSSHAIR MICROSCOPE PART OPTICS AS PICTURED &F2-A-233 Bliley Electric Co. " The books both contain

" The books both contain a number of illustrations and offer great insight into the technologies and methods of the era

img{max-width:100%}LEITZ WETZLAR LAMP ASSEMBLY WORK OK OPTICS MICROSCOPE as pictured &11-B-18

OPTICAL PHOTOMULTIPLIER DETECTOR RCA 66X-52 PRO OPTICS AS PICTURED #W5-B-09

MICROSCOPE PART OPTICAL OBJECTIVE 10X OPTICS AS IS BIN#D2-P-9

MICROSCOPE PART LEITZ GERMANY VINTAGE  OBJECTIVE 45X OPTICS AS IS BIN#2B-E-18

OPTICAL RETICLE CROSSHAIR MICROSCOPE PART OPTICS AS PICTURED &F2-A-233 Bliley Electric Co. " The books both containOPTICAL RETICLE CROSSHAIR MICROSCOPE PART OPTICS AS PICTURED &F2 A 233 Thanks.