Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Porthmadoc Slate Company, card of prices 1886
Black print on blue card. Foldable down the centre. Ornate border surround on front and reverse sides. Contains table of prices for machine-dressed blue slates in the centre pages, and a list of terms on the reverse. Dated 1st January 1886.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.