US
July 25, 1941- Label and catalog number
- Bluebird B-11230
- Format
- Shellac, 10", 78 RPM · Camden Pressing

Vinyl pressings
by Glenn Miller And His Orchestra · 1941
I Know Why / Chattanooga Choo Choo was first pressed on vinyl in 1941. Every vinyl pressing is listed below with its label, catalog number and runout codes, so you can tell an original from a reissue.
3 pressings came out in 1941, the album's first year, in 3 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.
OA.061245Side A label
OA.061246Side B label
B11230AStamped Side A
B-11230BStamped 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 |
|---|---|---|---|
| 1941 | Canada | Bluebird B-11230First yearShellac, 10", 78 RPM | Shellac, 10", 78 RPM |
| 1941 | US | Bluebird B-11230Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| 1941 | US | Bluebird B-11230Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| 1941 | US | Bluebird B-11230Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| 1941 | US | Bluebird B-11230First yearShellac, 10", 78 RPM | Shellac, 10", 78 RPM |
| 1941 | UK | His Master's Voice B.D.5720First yearShellac, 10", 78 RPM | Shellac, 10", 78 RPM |
| 1942 | UK | His Master's Voice B.D.5720Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| 1943 | UK | His Master's Voice B.D.5720Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| 1946 | UK | His Master's Voice B.D.5720Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| 1947 | India | His Master's Voice BD. 5720Shellac, 10", 78 RPM | Shellac, 10", 78 RPM |
| 1948 | UK | His Master's Voice B.D.5720Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| Year | Country | Label and catalog number | Format |
|---|---|---|---|
| 1951 | UK | His Master's Voice B.D.5720Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| 1951 | UK | His Master's Voice B.D.5720Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| 1953 | Finland | His Master's Voice TG 131Shellac, 10", 78 RPM | Shellac, 10", 78 RPM |
| 1953 | UK | His Master's Voice B.D. 5720Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| 1955 | UK | His Master's Voice B.D.5720Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| Year | Country | Label and catalog number | Format |
|---|---|---|---|
| ? | Denmark | His Master's Voice BD 5720Shellac, 10", 78 RPM | Shellac, 10", 78 RPM |
| ? | Germany | Electrola 7 MW 6437", 45 RPM | 7", 45 RPM |
| ? | Germany | Electrola EG 7541Shellac, 10", 78 RPM, Repress | Shellac, 10", 78 RPM, Repress |
| ? | Netherlands | His Master's Voice B.D. 5720Shellac, 10", 78 RPM | Shellac, 10", 78 RPM |
| ? | Norway | His Master's Voice A.L.S. 5054Shellac, 10", 78 RPM | Shellac, 10", 78 RPM |
| ? | Sweden | His Master's Voice BD 5720Shellac, 10", 78 RPM | Shellac, 10", 78 RPM |
| ? | Switzerland | His Master's Voice JK 2357Shellac, 10", 78 RPM | Shellac, 10", 78 RPM |
23 vinyl pressings of I Know Why / Chattanooga Choo Choo are listed here, from 11 countries, released between 1941 and 1955.
The earliest pressings are from 1941, in US, UK, Canada. One of them is Bluebird B-11230, released July 25, 1941.
Check the catalog number on the label (first-year pressings use B-11230, B.D.5720) and the codes etched in the runout groove, then compare them with the pressings listed above. 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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