This archive has been developed from the work undertaken by Bill Robinson over many years.

The whole site may be viewed by clicking "Complete Archive", alternatively searching for specific items may be undertaken using "Search".

Further, searches for specified scale layouts may also be undertaken.

Clicking on the "Maker & Model" column gives further information about the rule and appropriate pictures if available,

The Appendices give information provided by Bill Robinson on a range of topics associated with the hyperbolic rules.

If the Complete Archive is requested then it is always opened in a new window.

Alternative Display Output may also be selected.

A Help File is provided whose primary aim is to discuss the use of the Search facility.