B & K Precision Dynascan Corporation Test Instruments Catalog BK-85.

Vintage 1961 Fluke Precision Instruments Products Catalog

BK Precision / Maxtec International Corp. 1988 Test Instruments Catalog.

BK Precision / Maxtec 1990 Test Instruments Catalog.

B&K Precision BK-87 Test Instruments for Education Catalog

HP Test and Measurement Catalog 1999 Hewlett Packard

Sensitive Research catalog #62 Electrical Measuring Instruments Permanently Prec

Agilent 2001 General Purpose Test Instruments Catalog.