Columbia Records, CL 757 (1956):
“This record is a precision made product. It cannot be guaranteed to give full satisfaction unless the following conditions are met:
1. Do not use a needle which has been used beyond its recommended expectancy* (see chart at right).
2. Record surface must be kept clean.
3. Turntable must be level.”
Lyrichord Discs, LL 766 (1957):
“For best reproduction wipe with damp cloth. Cut to the RIAA Curve.”
RCA Victor, LM-2252 Red Seal (1958):
“Important Notice — This is a ‘New Orthophonic’ High Fidelity recording, designed for the phonograph of today or tomorrow. Played on your present machine, it gives you the finest quality of reproduction. Played on a “Stereophonic’ machine, it gives even more brilliant true-to-life fidelity. You can buy today, without fear of obsolescence in the future.”
Verve Records, MG V-15003 (1959):
“A Panoramic true HI-FI recording.”
Riverside Records, RLP 12-320 (1960):
“This record will provide highest quality sound reproduction on both standard long-play and Stereophonic playback systems.”
Mercury Records, MG 20675 (1962):
“This Mercury Custom Hi Fidelity recording is the result of the most modern recording technique of our time… This monaural disc can be played equally well with either a STEREO cartridge or a STANDARD 1 mil microgroove cartridge.”
Mercury Records, SR 60904/MG 20904 (1963):
“This MERCURY record is the result of the most modern recording techniques in the phonograph industry… In monaural or stereo, your MERCURY record will give you the truest possible reproduction of the original sound.”
Coronet Records, CXS-187 (1965):
“Electronically reprocessed stereo… The sound on this CORONET STEREOPHONIC record is engineered to perfection and is the final product of years of research and development of stereophonic recording techniques.”
Atlantic Recording Corporation, Mono 1481 (1967):
“This is a high fidelity recording. For best results observe the R.I.A.A. high frequency roll-off characteristic with a 500 cycle crossover.”
Decca Records, DL 79168 (1968):
“Simulated Stereo.”
Everest Records 2093 (1969):
“Everest stereo records may be played with excellent results on any modern mono player with a lightweight pick-up. Whether played mono or stereo, long life and full stereo fidelity are assured.”
Caedmon Records, TC 1383 (1972):
“Stereo. Intended for use on either stereo or monaural phonographs.”