It is worth noting, too, that this is one of his early discoveries (18 Jan 1784). Many other of his nebulae and clusters found during the winter of 1783-84 (his first season of sweeping) have relatively poor positions (see e.g. NGC 4153 and NGC 6533). Dreyer notes that N4124 already has two certain numbers in WH's lists, I 33 and II 60. The positions for these observations are better, but are still enough different – along with the differing descriptions "B, L, ..." and "F, S" – that WH listed them separately.