I've never owned a Stanley combination plane, perhaps because I tried one years
ago. However, I have a small screwdriver which appears to me to be the same as
the screwdriver that Stanley shipped with these planes. It is unmarked, so I
can't say for certain. I am wondering if these are unique in any way, or is it a
form and size which was generally available on the market at some point? Here's
a link to a plane in Patrick Leach's May offerings which displays the
screwdriver.

http://www.supertool.com/forsale/may/t86.jpg

Don