NEILSTON MARK ON UNDERPAID MAIL; 24 Dec. 1857 env. (light file fold) to Paisley franked 1d red tied by fine "NEILSTON" h.s. in blue with s/l "MORE TO PAY" h.s. in blue also on front and rated '2'(d). Rear with Glasgow and Paisley cds. Scarce. Cross Reference: POSTAGE DUE MARKS, LANARKSHIRE - GLASGOW, INSTRUCTIONAL MARKS (Image)