Yeah, that was my thoughts too but although I cannot fully view all the proofmarks, it seems that all the marks forward of the flats are still present. And too, I did not decipher the British reproof date, but I thought they applied the word >>Sleeved<< when they did something like that. And I do see what looks like an R in the water-table well.

Hochachtungsvoll,

Raimey
rse