Although the planisphere will work at any North Latitude, they are optimized for the four latitudes of 22°, 30°, 40° and 50° North. They also come in
Millers Planisphere 40 Degrees, Large - CLP-MPC40
Vintage Philips' & Miller Planispheres (4) and Moon Map
Planisphere - Simple English Wikipedia, the free encyclopedia
How to Build a Customized Astrolabe Using a Laser Cutter : 11
The Miller Planisphere 30 Degrees North, Enlarged
Miller Planisphere - Celestaire, Inc.
MILLER PLANISPHERE 30 DEGREES 5.5 – Half-Moon Outfitters
Recommend a printed, store-bought planisphere for a newbie
Planisphere
What is a Planisphere? The home of non-fiction publishing
MILLER PLANISPHERE - Liberty Mountain
The first appearance of the Spice Islands on a world map – the