MEBM,
i am a loser and forgot to check.
i will write myself a note for tonight.
in the meantime, please have a look at:
http://afvinteriors.hobbyvista.com/251/251a.html
and please note the link to a second page at the bottom!
or click here: http://afvinteriors.hobbyvista.com/251/251b.html
this page should also lead to good info:
http://www.geocities.com/MotorCity/Pit/3515/251/index.htm
and way down toward the bottm of this page there are a number of links for pages on the 251 family
EDIT - Posted wrong link previously!
http://www.linux-penguin.org/achtungpanzer/half.htm
(sometimes they exceed their bandwidth, and you have to wait till later)
happy hunting!
i will TRY to get the book out tonight.
sorry bout that.