US
1966- Label and catalog number
- RCA Camden CAL 1078
- Format
- LP, Album, Mono
- Runout / matrix
SCRM--7440--1S RRunout Side A {stamped}
SCRM--7441--4S A: RRunout Side B {stamped}
SCRM-7440Label Side A
SCRM-7441Label Side B
Vinyl pressings
by Dr. Seuss · 1966
If I Ran The Zoo / Sleep Book was first pressed on vinyl in 1966. Every vinyl pressing is listed below with its label, catalog number and runout codes, so you can tell an original from a reissue.
2 pressings came out in 1966, the album's first year. 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.
SCRM--7440--1S RRunout Side A {stamped}
SCRM--7441--4S A: RRunout Side B {stamped}
SCRM-7440Label Side A
SCRM-7441Label Side B
SCRM--7440--2S H ARunout Side A {stamped}
SCRM--7441--2S H ARunout Side B {stamped}
SCRM-7440Label Side A
SCRM-7441Label Side B
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 |
|---|---|---|---|
| 1966 | US | RCA Camden CAL 1078First yearLP, Album, Mono · Mono | LP, Album, Mono · Mono |
| 1966 | US | RCA Camden CAL 1078First yearLP, Album, Mono · Mono | LP, Album, Mono · Mono |
| 1969 | US | RCA Camden CAS-1078 / RCA Camden CAS 1078LP, Album, Reissue, Stereo | LP, Album, Reissue, Stereo |
| Year | Country | Label and catalog number | Format |
|---|---|---|---|
| 1981 | Canada | RCA Camden CL-50009LP, Album, Stereo | LP, Album, Stereo |
| Year | Country | Label and catalog number | Format |
|---|---|---|---|
| ? | Australia & New Zealand | RCA Camden CAL 1078LP, Album, Reissue, Mono · Mono | LP, Album, Reissue, Mono · Mono |
| ? | Canada | RCA Camden CAS 1078LP, Album | LP, Album |
| ? | Canada | RCA Camden CAS-1078 / Pickwick CAS 1078LP, Album, Reissue, Stereo | LP, Album, Reissue, Stereo |
| ? | Canada | RCA Camden CAL 1078LP, Album, Mono · Mono | LP, Album, Mono · Mono |
| ? | New Zealand | RCA Camden CAL 1078LP, Album, Mono · Mono | LP, Album, Mono · Mono |
| ? | US | Pickwick CAS-1078LP, Album, Reissue | LP, Album, Reissue |
| ? | US | RCA R110401LP, Repress, Stereo | LP, Repress, Stereo |
11 vinyl pressings of If I Ran The Zoo / Sleep Book are listed here, from 4 countries, released between 1966 and 1981.
The earliest pressings are from 1966, in US. One of them is RCA Camden CAL 1078.
Check the catalog number on the label (first-year pressings use CAL 1078) and the codes etched in the runout groove, then compare them with the pressings listed above; for example, SCRM--7440--1S R and SCRM--7441--4S A: R. 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.

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