Made by MICROSEIKI Corp. of Japan, type
BL-71. It’s a record for professional
use that you can play it at 33rpm (round
per minute) or 45rpm dependent on your
need. |
Type PRO-B12, made by BE Company of the
U.S. It was mainly for professional use.
For the convenience of its user, its
rotational speed, included 33 and 45rpm,
can be directly adjusted by hands from
the notches on two sides. |