Pressing plant · Capitol Records
Capitol vinyl pressing-plant symbols.
What the mark really means.
Capitol often signed its factories with pictures instead of plain initials. A triangle containing IAM points to Scranton. A star or asterisk points to Los Angeles. A small zero points to Jacksonville. A sideways rifle—or wine-glass-looking mark—points to Winchester. These symbols identify the factory, not the complete issue.
01
The quick decode
△ IAMPressing plantCapitol Records Pressing Plant in Scranton, Pennsylvania.
Where: Machine-stamped in the runout, with IAM letters inside a triangle.
Do not assume: The Scranton mark changed outside parts of the IAM-triangle era; date the title too.
✲ / *Pressing plantCapitol Records Pressing Plant in Los Angeles, California.
Where: Stamped in the dead wax as a star-like or asterisk-like symbol.
Do not assume: A faint star can resemble a scratch; confirm it on both the record and documented examples.
0 / OPressing plantCapitol Records Pressing Plant in Jacksonville, Illinois.
Where: A small stamped zero or oval in the runout.
Do not assume: Do not confuse the small plant stamp with a handwritten matrix character.
─◁Pressing plantCapitol Records Pressing Plant in Winchester, Virginia.
Where: A stamped or etched symbol resembling a sideways rifle or wine glass.
Do not assume: Winchester opened later than classic mid-1960s Capitol issues, so the symbol can expose a reissue.
02
How to read it in the full runout
- Tilt the record under side light; Capitol's plant symbols can be tiny and shallow.
- Separate the factory symbol from the longer matrix and lacquer code nearby.
- Use the plant's operating period as a boundary, not as a complete pressing date.
- Check the label design and jacket because the same title could be pressed at several Capitol plants.
03
What this mark does not prove
A runout clue answers one manufacturing question. A pressing identity comes from several clues agreeing with one another.
- Mistaking the Winchester rifle for a wine glass, V, or random scratch.
- Reading Jacksonville's stamped zero as part of the catalog number.
- Assuming copies from different Capitol plants necessarily use different mastering.
04
Check your copy in four passes
- Find and photograph the plant symbol on both sides under angled light.
- Copy the full matrix separately so the plant and lacquer clues stay distinct.
- Match the label dome position, rim text, and catalog prefix to the release era.
- Use the plant's opening and closing dates to rule out impossible first-press claims.
05
Put the mark back on the record
1966 · Capitol black rainbow-rim
The Beach Boys — Pet Sounds
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The Band — Music from Big Pink
Check the complete pressing1969 · Capitol black rainbow-rim
The Band — The Band (Brown Album)
Check the complete pressing- Capitol black-rainbow label guide
Pair the factory symbol with dome position, rim text, and catalog prefix.
- First-pressing Beatles guide
Apply Capitol plant and label clues to the US Beatles catalog.
Sources
Reference trail
Runout conventions are label- and era-specific. These references support the decoding above; title-level identification still requires the complete copy.
Keep checking the shelf
Decode another part of the runout.
A single dead-wax string can contain a master, engineer, lacquer, and plant.
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Tell Blue Note's RVG or VAN GELDER mastering mark from the Plastylite ear pressing-plant mark, and learn why one can survive without the other.
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Matrix system · Columbia Records
Columbia matrix numbers
Decode Columbia XLP and XSM matrix prefixes, side numbers, and lacquer suffixes such as 1A or 1B without mistaking one clue for proof of a first pressing.
Check this pressingA few questions
The ones that come up.
On Capitol releases from the applicable era, the IAM triangle is associated with Capitol's Scranton, Pennsylvania pressing plant. It identifies the factory, not the lacquer or exact pressing date by itself.
The sideways rifle-like mark identifies Capitol's Winchester, Virginia plant. Because Winchester began operating later than Capitol's classic mid-1960s period, it can help distinguish later issues.
A stamped star or asterisk-like mark is associated with Capitol's Los Angeles pressing plant. Check the complete matrix and label because the star does not identify the lacquer cut on its own.
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