Just a note: Musicol is still in operation: http://www.musicolrecording.com/
On Saturday, October 10, 2015, David Lewis <[log in to unmask]> wrote:
> Musicol was a studio and record manufacturer based in Columbus, Ohio that
> handled a lot of small rock and soul records. If the disc is labeled as a
> regular release,
> then it would not necessarily be a test pressing; perhaps it would be that
> the cutter held particularly high standards for notating his jobs with data
> relevant to the cut.
> It was not unusual for producers of client recordings to put such
> information into the lacquer so that if there was an issue they could
> review it for quality control purposes.
> When my band Qi-ZZ made its single at Jewel Records in 1980 we took down
> Rusty York's cutting notes and included them on the sleeve of our record,
> so anyone
> with an equalizer could make adjustments and hear the record better than
> with standard equipment.
> Uncle Dave Lewis
> On Fri, Oct 9, 2015 at 3:54 PM, Chris Bishop <[log in to unmask]
> > I have a '70s 45rpm single by a rock group called Gun Shy. The deadwax
> > markings by the engineer are more detailed than on any other single I've
> > seen. Some are hard to make out but this is my best guess, all
> > Musicol 103450
> > JMH
> > +5 EQ STD
> > LO +3@25
> > HI +2@4K
> > BDH1 +1 TO /2
> > FIL 8K
> > M/W MAC/W +3
> > Seems to be about the same on both sides except for the 6 digit number
> > after Musicol. Would these kinds of notes imply this is a test pressing?