Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Directions to the Planisphere of the Stars (bklet)
Blue cover with black print. Directions to the Planisphere of the Stars with Introductory Remarks on the Stellar and Planetary Systems. 55 pages with loose page at reverse.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.