To find this cache, go to the posted coordinates, where you will use your caching ability and research skills to log this cache. If you are lucky, you will be able to locate and sign the log on the same day! PLEASE SEE RELATED WEB PAGE BEFORE DRIVING HERE TO SEARCH.
The first stage was originally a micro, but since the bench that held it has been removed, it is now a virtual stage. When you arrive, you will find a Harvard Mark II with four plaques at the base. On the plaque titled "Harvard Mark II" there is a dedication date at the bottom. Use the four digits for the year in the following formula:
2760.5 - year = a useful number
When you have this number, use your research skills to find and sign the log :)
Congratulations to Rookie Boy on FTF!