Restoring from tape with one volume missing

I only have volume 1 of a 2-volume set of backup tapes written
by the ol' Windows backup/restore utility.  (2nd vol is missing cuz
an operator assumed that if the tape was automatically ejected, it
meant that the backup ran to completion.  So volume 1 was removed,
there is no volume 2.  BTW, the system is monitor-less.)

I can't list the tape's contents - much less restore - without the
2nd volume, yet I'm confident that what I want to restore is on the
1st volume.

Anybody know of a way to pull this off?

-John

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