Here are pdf scans of a year 2000 era manual for:

the ACCURACY DEN *I.C.C. UNIT
*(Internal Concentricity Comparator)
Ultrasonic Metal-Mass Detector

“The Vern Juenke Machine”

Original US LETTER size format ;and

VernJuenke_oringal LTR size version

resized A4 format

VernJuenke_resized LTR to A4 version