Kirchner old upright - mfg date?

[Dan Litwin]

Hello.  (Sorry if you've got this twice, but my first copy recieved was a=
ll
botched up.)

Does anybody know how I can help my customer figure out the manufacturing=

date for a piano that is not listed in the Pierce Piano Atlas?

It is a Kirchner old upright serial number 22404.

Kirchner is listed in the atlas, but with no info about this number and
precious little about any other numbers.

Thanks.

Dan