LJC Illustrated Reference Guide to the label of 1st pressings:
Mono A-1 through to A-9165
Last Updated: November 12, 2018
(Synopsis by DottorJazz)
A-1 to A-33: a product of AM PAR record comp
A-34 to A-100: a product of ABC Paramount records INC
A-1 to A-80 (except A-79-A), A-99, A-100: NO suffix -A/-B
A-79-A, from A-81-A on: suffix -A/-B
(A-9101?): third in a series without suffix-A/-B, may exist without suffix -A/-B
A-9101-? to A-9132-A, A-9135-A, A-9136-A, A-9143-A: a product of ABC Paramount records INC
(Except A-9120-A: a product of ABC records INC New York, N.Y. 10019-made in USA)
WHITE PROMO, orange label not yet found, if exists: no credits, no address
A-9126-A, A-9133-A, A-9137-A, A-9140-A, A-9144-A, A-9147-A,
A-9149-A, A-9150-A, A-9151-A, A-9152-A, A-9153-A, A-9154-A,
A-9155-A, A-9157-A, A-9158-A, A-9159-A, A-9163-A
A-9138-A, A-9142-A: a product of ABC records INC New York, N.Y. 10019-made in USA)
A-9139-A, A-9165-A: later ABC white promo
A-9165-A: LAST IMPULSE MONO? only in later white promo
A-9141-A, A-9145-A, A-9146-A, A-9148-A, A-9156-A, A-9160-A,
A-9164-A: ??, not found
A-9156, A-9161, A-9162, A-9166 and higher STEREO ONLY
LJC Illustrated Reference Guide: 1st pressing original label Mono
Pictured, the label of original first pressing of every title released in mono by Impulse A-1 through to A-9165. (Quality of screengrabs and downloads varies, colour depends on light under which original was photographed or scanned)
Click to view full screen at 2000 pixel-wide
A-1 to A-25: Orange/black ring label, Am Par Record Corp
A-26 to A-50 Transition from Am Par to ABC-Paramount Records Inc.
(Updated November 12, 2018, with A-29 – found as Am Par)
A-51 to A-75 (updated August 12, 2018)
A-76 to A-100 (Updated August 12, 2018)
At A-79, introduction of A/B suffix to catalogue number (except A-80): A-##-A / A-##-B format. Any title A-1 to A-78 with A/B suffix (e.g. A-33-A) is a later pressing, not original.
A9010 to A-9125
A-9126 to A-9150 Transition from ABC Paramount to ABC Records Inc. Mono increasingly found only on white label destined for radio play/ promo; commercial releases are stereo
Thereafter, AS-9166 and higher, the Impulse imprint became Stereo-only.
A few titles in the run up to A-9165 are not found in mono. The final run of mono releases are likely only white-label promotional copies destined for radio play.
This Guide relates to US Impulse pressings. European pressings were mastered locally from copy tape (see ♪) for example, UK HMV reissues, and may have continued in mono format for some time, as consumer uptake of stereo was behind the US curve. Insufficient information has been collected at this time.
♪ Note – exceptionally, a European edition of an Impulse title has been seen bearing Van Gelder stamp, indicating use of original US metalware. The title in question, Oliver Nelson Blues and The Abstract Truth, may be unique or possibly one of a number of Italian Impulse pressed in this way. It was common practice between Prestige and UK Esquire in the late ’50s/ early ’60s so there is a precedent, but it is otherwise a rare form of overseas distribution.
Update: September 10, 2017
Eagle-eyed reader Rob G spotted this late series mono title, A-9152, on orange/black label, among a hoard of white promo label Impulse LPs, no doubt collection of a disk jockey or radio station.
Photo credit: Rob G
Possibly a rare example of a promo issued on a regular label, but not a commercial mono release.
UPDATES August 12, 2018 – addition of missing and improved quality label-shots courtesy of record collector and Impulse completist Maurizio, my thanks.