Midland Red 2957 HA passes Wordsley Post Office

Midland Red BMMO D9 4957 passes Wordsley Post Office in the Black Country in about 1971. I think 4956-8 were at Harsthill HL. I can't always remember what I had for tea tonight but I can still remember a whole list of allocations of these new: 4945-6 LD, 4947-8 OY, 4949 BD, 4950-1 MN, 4952 WN, 4953-4 SN, 4955-57 HL. In fact HL might have had 4958 as well, for 4959-60 were at DY. Oh dear 1962 so long ago!