B+K Precision / Dynascan Corporation 1978 Test Instruments Catalog.

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

BK Precision 50th Year Test Instruments + Accessories Product Catalog

Philips Catalog ~ Test and Measuring Instruments Catalogue 1974

Vintage B&K Precision BK-7 Test Instruments Pocket Catalog 1976

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

BK Precision Dynascan Corporation BK-79 Test Instruments Products Catalog

BK Precision / Maxtec 1990 Test Instruments Catalog.