Following the introduction of black ink deom 10 February 1841, the majority of Post Towns had ceased to use red ink on (or before) 14 February.
Usage on the 1d black
1d black (plate 6), position OH cancelled with red maltese cross on entire from Carlow, County Leinster to Dublin dated 15 February 1841.
[GA] plate 7, from Galashiels to Edinburgh dated 16 February 1841, cancelled with a red maltese cross.
1d black (plate 2) position GD cancelled with red maltese cross on envelope from Libberton to Haddington dated 19 February 1841.
1d black (plate 9) position PL cancelled with red maltese cross on entire from Ennis to London dated 22 February 1841. Handstruck 1 to denote additional charge for redirection on arrival in London
Usage on the 1d red
A small number of Post Towns continued using red ink well beyond February 1841 and this resulted in red ink being used to cancel 1d red stamps; such usage is rare.
[OG] plate 5 in red cancelled with a red Maltese cross [e]
[EC] plate 11 in red cancelled with red Maltese cross [e]
[TD] plate 16, cancelled with a red Maltese cross [e]
[NH] plate 19, cancelled with red (mixed inks) Maltese cross and then a black cross from the same obliterator [e].
[PL] plate 20, from Heywood to Newcastle (Staffs.), dated 6 September 1842, cancelled with a red Maltese cross [e] Also has Heywood undated circle on reverse
[OG] plate 5 in red, from Hayle to Wadebrige dated 15 July 1841, cancelled with a red Maltese cross Very late use of red Maltese Cross
Red and Black Crosses
[IA] plate 8 in red, from Cushendall, County Antrim to Dublin, dated 29 April 1841, cancelled with a redMaltese cross of Cushendall and upon a arrival a black Maltese cross of Dublin
[EG] from Redruth to Hayle, dated 19 April 1842, cancelled with a blackMaltese cross of Redruth and upon a arrival a red Maltese cross of Hayle
There are only 30 recorded covers bearing a 1d red, cancelled with both red and black crosses
Additional items - not in display
[GA] plate 11 in red (State One) cancelled with red Maltese cross
[TE] plate 5 in red cancelled with red Maltese cross [e]
[KG] plate 14, cancelled with a red Maltese cross (on piece)
[DL] plate 7, from Pickering to Kirbymoorside, dated 5 March 1841, cancelled with a red Maltese cross