Canada
1984- Label and catalog number
- Polydor PDS 2271
- Format
- 7", 45 RPM, Single
- Runout / matrix
PDS-2271B 2NB 230Runouts
PDS-2271A 2NB 230Labels

Vinyl pressings
by Deep Purple · 1984
Knocking At Your Back Door was first pressed on vinyl in 1984. Every vinyl pressing is listed below with its label, catalog number and runout codes, so you can tell an original from a reissue.
12 pressings came out in 1984, the album's first year, in 7 countries. Compare the label and catalog number on your copy, then the codes etched or stamped in the runout groove (the dead wax around the label): they are the surest sign of an early pressing.
PDS-2271B 2NB 230Runouts
PDS-2271A 2NB 230Labels
PDSX-2271B SNB 230Runouts
PDSX-2271A SNB 230 DM-GSide A variant 2
PDSX-2271B SNB 230 DM-GSide B variant 2
PDSX-2271A SNB 230Labels
STERLING ⚾ 880 47772-58058-BWA-side runout etching
STERLING 880-47772 58064-BWB-side runout etching
2-58058A-Side label
2-58064B-Side label
(Labels): 2-58058
A-side 880-477-7.2 58064-ALD Q R-13764-ALD S SLM △8567 1-1
880 47772 - 58058-BWKnocking At Your Back Door side
880 47772 58064-BW
Not sure how to read the runout? See matrix numbers, runout and dead wax and how to tell a first pressing.
By decade, oldest first. Open a pressing for its full label, barcode and runout details.
| Year | Country | Label and catalog number | Format |
|---|---|---|---|
| 1984 | Australia | Polydor 881 633-7First year7", 45 RPM, Single | 7", 45 RPM, Single |
| 1984 | Canada | Polydor PDS 2271First year7", 45 RPM, Single | 7", 45 RPM, Single |
| 1984 | Canada | Polydor PDSX 2271First year12" | 12" |
| 1984 | Mexico | Polydor S/N 473First year7", 45 RPM, Single, Stereo, Mono · Mono | 7", 45 RPM, Single, Stereo, Mono · Mono |
| 1984 | South Africa | Polydor PS 8064First year7", 45 RPM, Single | 7", 45 RPM, Single |
| 1984 | UK | Polydor POSPX 749-DJFirst year12", 45 RPM, Maxi-Single | 12", 45 RPM, Maxi-Single |
| 1984 | US | Mercury PRO 332-1First year12", Promo · Promo | 12", Promo · Promo |
| 1984 | US | Mercury 880 477-7First year7", 45 RPM, Single | 7", 45 RPM, Single |
| 1984 | US | Mercury 880 477-7 DJFirst year7", 45 RPM, Single, Promo · Promo | 7", 45 RPM, Single, Promo · Promo |
| 1984 | US | Mercury 880 477-7First year7", 45 RPM, Single | 7", 45 RPM, Single |
| 1984 | US | Mercury 880 477-7First year7", 45 RPM, Single | 7", 45 RPM, Single |
| 1984 | Japan | Polydor 7DM0126 / Polydor 7DM 0126First year7", 33 ⅓ RPM, Single, Promo, Stereo · Promo | 7", 33 ⅓ RPM, Single, Promo, Stereo · Promo |
| 1985 | France | Polydor 881 633-7 / Polydor 881633-77", 45 RPM, Single, Promo · Promo | 7", 45 RPM, Single, Promo · Promo |
| 1985 | Germany | Polydor 883 045-77", 45 RPM, Promo · Promo | 7", 45 RPM, Promo · Promo |
| 1985 | Spain | Mercury 881 633-77", 45 RPM, Single | 7", 45 RPM, Single |
19 vinyl pressings of Knocking At Your Back Door are listed here, from 10 countries, released between 1984 and 1985.
The earliest pressings are from 1984, in Canada, UK, US, Australia and more. One of them is Polydor PDS 2271.
Check the catalog number on the label (first-year pressings use PDS 2271, PDSX 2271, POSPX 749-DJ, 880 477-7) and the codes etched in the runout groove, then compare them with the pressings listed above; for example, PDS-2271B 2NB 230 and PDS-2271A 2NB 230. Later reissues often keep the catalog number but change the label design or the runout codes.
It depends on which pressing you have and on the condition of the record and its sleeve. Early pressings from the album's home country in near mint condition are usually worth the most; common later reissues are worth far less. Scan your copy with VinylLens to see its value for every grade.