[ATM] Who invented that telescope?

[artbianconi at blast.net (artbianconi@blast.net)]

This past weekend, I attended the Mirror Making Event hosted by the 
Delmarva Stargazers and held at the Mallard Lodge in Smyrna, 
Delaware.

Two of those who supported the participants were Dave Groski and Bill 
Cheng.

Bill brought a rather unique, all wood telescope with him which has 
an exceptionally long focal length and an off-axis convex secondary. 
These combine to "fold" the sight axis so the finished design is 
relatively short in spite of it's very long focal length.

I can best characterize the design as something that might result if 
someone dropped a Cassagrain from a second story window onto a fence 
post! At first glance, nothing seems to line up!

Bill built the telescope using data compiled and enhanced by Dave of 
an earlier design by someone else.

I'd like to research this some more but can't find the name of the 
original designer whose name was hyphenated and which I think started 
with "Shief" or some similar sounding name. 

Can anyone fill in the blanks for me?

Thanks

Art Bianconi