1a

Line-engraved 1d. Black 1840

SG		Description	Filler	Fine.Fil	Aver.	Fine	V.Fine	Superb
1	1d	Intense black	23	38	65	115	170	260
2	1d	Black	16	28	50	80	120	190
3	1d	Grey-black (worn plate)	21	35	60	105	155	245
	1d	Black (shades), plate 1a	21	36	70	105	165	250
	1d	Black (shades), plate 1b	19	33	65	95	150	230
	1d	Black (shades), plate 2	19	33	65	95	150	230
	1d	Black (shades), plate 3	23	39	80	115	180	280
	1d	Black (shades), plate 4	21	36	70	105	165	250
	1d	Black (shades), plate 5	19	33	65	95	150	230
	1d	Black (shades), plate 6	19	33	65	95	150	230
	1d	Black (shades), plate 7	21	36	70	105	165	250
	1d	Black (shades), plate 8	25	42	85	120	190	300
	1d	Black (shades), plate 9	29	50	100	150	230	360
	1d	Black (shades), plate 10	42	70	140	210	330	510
	1d	Black (shades), plate 11	190	300	600	1000	1400	2300

The shown prices for plated copies are for the ordinary black shade (SG 2).
Prices for plated copies of SG 1 and SG 3 are higher.