date of Acrosonic spinet?

[Noah Haverkamp]

First, i'd like to thank all those who have answered my questions
regarding "cleaning of a Grand?" and the rust thing. The grand
cleaning was quite successful. 
this baldwin acrosonic spinet had a #469216. Pierce lists this number
under the heading "Baldwin 6000, 52" vertical (and 248A 48" vertical
since 1994)" only. huh?
-noah