Subject: A beautiful and atmospheric postcard in a striking blue tint (or cyanotype style) depicting a South Wales colliery pit head at night, under a full moon. Publisher: Western Mail, Ltd., Cardiff. "The Colliery Series. No. 1". Era: Edwardian / Divided Back (c. 1905-1915). Printing Method: Printed. Notable Features: The title "LLYTHYR-GERDYN" and dual-language text in Welsh and English on the reverse make this a distinctly Welsh postcard. Condition Notes: Unused and unposted. In very good, clean condition. Corners have only very slight softness. There is a faint pencil number '6' on the reverse, otherwise clean.