Denny Zeitlin LP-Soundings/ Free Improvisations Solo Piano-1750 Arch Records

The inner sleeve is either plastic or cellophane. The gentleman had his own filing system of his collection & every sleeve and/or box is labeled. You can see that label in the photos that I've uploaded.

Denny Zeitlin: Nothing Halfway article @ All About Jazz

Denny Zeitlin - Compact Discs

Denny Zeitlin – Soundings (1978, Vinyl) - Discogs

Bill Dobbins - The Contemporary Jazz Pianist - Vol. 4, PDF, Jazz Music

Denny Zeitlin LP-Soundings/ Free Improvisations Solo Piano-1750 Arch Records

Solo Jazz LP Vinyl Records for sale

Solo Jazz LP Vinyl Records for sale

Record Collector Issue 523 October 2021, PDF

Denny Zeitlin – The Name of This Terrain (1969) – from Now-Again Reser – Rappcats

Denny Zeitlin LP-Soundings/ Free Improvisations Solo Piano-1750 Arch Records

Denny Zeitlin - Free Improv/What Is This Thing Called Love

Y / Denny Zeitlin LP-Soundings/ Free Improvisations Solo Piano

Denny Zeitlin – The Name of This Terrain (1969) – from Now-Again Reser – Rappcats

Denny Zeitlin: Nothing Halfway article @ All About Jazz

Denny Zeitlin: Balancing Act article @ All About Jazz