SIBELIUS Concerto in D Minor CLASSIC RECORDS 45rpm 4 Lacquers Box Set (EXC)

$

64

(edited info from original themusic.com ebay listing)
Sibelius, Concerto in D Minor 45rpm Lacquers Box Set Original Classic Records Master Lacquers
Label: Everest Catalog Number: SDBR 3045-45 Product Condition: exc
     Sibelius' "Concerto in D Minor" (Tauno Hannikainen/ London Symphony Orchestra) Original Master Lacquers which were cut from master tapes provided to Classic Records by RCA Living Stereo for the LP reissue, with only one set (1 of 1) of lacquers (1 per LP side - 4 sides: A1, A2, B1, B2) cut. 
     One of a kind original master lacquers cut from the original master tapes and used by Classic Records to produce stampers that pressed their vinyl reissue editions.  Here's how it works: In real time, the master tape was running along with the cutting lathe cutting the groove modulations in the master lacquer.  The master lacquer was then electroplated and produced a Master plate used ultimately to make stampers that press vinyl records.  Once the master lacquer has made its metal master it can still be played like an LP and represents the CLOSEST transfer to the original master tape used to cut it! A "lacquer" of an LP is simply the original 14"-diameter, nitro cellulose-coated aluminum disc that the LP mastering engineer "cuts" with a heated stylus assembly from either the master tape, or in the case of a "direct-to-disc" recording, literally from the live microphone feed. If any mistake is made when cutting the lacquer, it must be thrown out and a new one started. The lacquer is then used to start the plating process for making standard PVC LP records, and then stored for possible future use. Lacquers are actually playable on a standard phonograph system if trimmed to 12" in diameter to fit the turntable, as they are a "positive" of the recording, just like the final finished LPs that come from them. HOWEVER, they are VERY fragile, as nitro cellulose is a very soft material. The process of hand trimming the 14" processed lacquers is very delicate and can result in small chips around the trimmed are which generally does not affect playback using a standard cartridge. While fragile by nature, processed lacquers are the highest-fidelity source of the music except for the original master tape itself.  The sound of lacquer is as close to the sound of the master tape as you can ever get - with the least amount of information lost in the transfer and the highest fidelity.  The master lacquer of a Classic Records title offers the ultimate collectible given there is generally only one set per title.*  For these special editions, the master lacquers have been delicately trimmed down from 14" to 12" in diameter so that they can be played back on any modern turntable.  Each disc is single sided and perfectly flat for playback sound that is nothing short of breathtaking.  Each set is packaged in its own custom box and sealed and numbered to preserve their collectibility.  This is a rare opportunity to procure a genuine, one of a kind collectible that will only grow in value over time because, there will only ever be ONE* of them - period! 
This set is packaged in a white special edition box and each lacquer comes in a white jacket.  Original jacket also included as a bonus! Jacket in near mint condition.
ULTRA RARE item.