Tuthill Polar Finderscope

I have an old (cira 1997) Tuhill Polar Finderscope for my 8" SCT. It came with a laminated page of where to set the finderscope based on the Month, Day, Year. However, since it's over ten years old, the settings are outdated. Does anyone know of a way to get an updated list of settings? Any help would be appreciated.

Thanks.

Mike

Michael,
I may be totally wrong but I don't think the time and date change. Yes, there is a bit of drift over the years and standard polar alignment scopes mark this on the reticule for the next 25 or so years, but I believe the time and date remain constant. You should, I think, be able to use the laminated page and be very close. Providing no one loosened the set screws and altered the 'misalignment' of the rifle scope.
In any case, after doing the calculations using the Tuthill formula you can detect any gross errors using this handy app..

http://myastroimages.com/Polar_FinderScope_by_Jason_Dale/

Since the Tuthill uses a rifle scope and gives a correct image you may have to unclick the 'view though a telescope' box.

Bob