Scratched out matrix number

What are these weird markings on the inside edge of my record next to the label and what do they mean?

Moderator: Guild Moderators

User avatar
annaloog
R.C.Guild-M-SMR
R.C.Guild-M-SMR
Posts: 10637
Joined: Wed Jun 04, 2003 3:46 am
Location: Nashville, TN (USA)

Re: Scratched out matrix number

Post by annaloog » Tue Aug 09, 2011 12:00 pm

Apoplectic wrote:
annaloog wrote:BTW, does your Foghat disk indicate it was mastered by Capitol?
Afraid not. Would that be a good thing?
It was a shot in the dark ... your report of the matrix nos., with the side no. placed between the prefix and the record no., led me to think your copy might be a Capitol pressing. Many, but certainly not all, Capitol-mfd. disks were mastered by Capitol.

User avatar
Mikey
R.C.Guild-M-SMR
R.C.Guild-M-SMR
Posts: 1272
Joined: Thu Feb 20, 2003 10:28 pm
Location: Australia

RE: Re: Scratched out matrix number

Post by Mikey » Thu Aug 11, 2011 10:34 pm

Catalogue numbers inscribed into the matrix changed when, as Annaloog pointed out, the record was re-issued at a new price point.

The original number is inscribed into the lacquer disc, hence the depth of the etching. The lighter etched number would have been etched into the mother, which is harder to etch. We did this often and sometimes even inscribed the new number into the stamper in reverse lettering - this meant these numbers were raised on the vinyl record.
Last edited by Mikey on Fri Aug 12, 2011 12:59 am, edited 1 time in total.

User avatar
Mikey
R.C.Guild-M-SMR
R.C.Guild-M-SMR
Posts: 1272
Joined: Thu Feb 20, 2003 10:28 pm
Location: Australia

Post by Mikey » Fri Aug 12, 2011 12:58 am

stephenjaye wrote: I believe that your terminology is incorrect. A "stamper" is the metalwork used to press the record and it's a negative.

Correct.
The production master (some call it production mother) is a positive and that's where the matrix numbers were scratched out and re-engraved
.

Lacquer disc (+) comes first, then Master (-), then Mother (+) then Stamper (-). Then ofcourse the vinyl rrecord (+). Yes, normal procedure is to engrave the new catlague number in the mother in this case.
The first generation plating pulled from the lacquer master is the mother (a negative) and rarely survive;
This negative is actualy a MASTER (in Europe : "Father"). The Mother is a positive and played on a turntable for quality cointrol purposes.
they are melted to recover the silver used during the intital plating process.
The conductive silver layer adheres to the newly formed nickel MASTER. Sometimes a few spots stick to the lacquer which is discarded in which case the MASTER is soaked in ammonia to dissolve the remaining silver, otherwise the patchy layer of silver causes crackles. Some plants would dissolve the silver layer on the master as part of their process - some wouldn't. The Master is not discarded but rather used to make mothers. Nothing here can be melted down. Once the metal matrixes are no longer useable or required, they are sold as scrap metal.

Brainticket
Level 2
Level 2
Posts: 14
Joined: Fri Oct 12, 2012 5:12 am
Location: Toronto, Canada
Contact:

Post by Brainticket » Wed Dec 05, 2012 12:33 am

I would like to get some more indepth information on this subject if I can. In this instance I am writing of etched matrix numbers, not stamped. I have several albums in which two matrix numbers are etched and one scratched out. In most cases the scratched out one does not refer to a secondary label number as often found in brackets under the primary on the label. 1. Is this scratched out number of any importance to the issue in question? 2. If I were to sell said LP online would it be necessary to even mention the scratched out number (say if a potential buyer asked for matrix number info)?

User avatar
Valdez
R.C.Guild-SM
R.C.Guild-SM
Posts: 2128
Joined: Wed Apr 27, 2005 3:11 am
Contact:

Post by Valdez » Thu Dec 06, 2012 2:59 am

On a good day that Lp probably sells for about 3 bucks near mint... As someone said before, you do not have any concerns with Foghat matrix numbers... yet... Maybe someday they will be recognized as Rock Royalty and their collectibility factor will soar to great heights... Ya just never know.
Attachments
scotty-whisky.jpg
scotty-whisky.jpg (22.37 KiB) Viewed 4409 times
"There is no reason for any individual to have a computer in his home."
Ken Olsen,founder and CEO of Digital Equipment Corporation.

Post Reply

Return to “Matrix Numbers”

Who is online

Users browsing this forum: No registered users and 1 guest