Shostakovich 8/CSO Live/February 1989 ??

[AndyL]

Anyone know who is playing tuba on the Chicago Symphony's February 1989 live recording of Shostakovich 8 ?

My (possibly flawed) impression is that date is after Jacobs retirement, but before Gene Pokorny was with the orchestra full-time (?).

Thanks in advance for any assistance in this matter. Am enjoying the recording I recently received via Arkivmusic.com.