Not seen this version with the word 'safe' on the lamp!
https://www.the-saleroom.com/en-gb/auction-catalogues/tamlyn-and-son/catalogue-id-srtam10049/lot-10b60aba-52bd-41dc-b1e3-a7cb012e2340
No, neither have I. I believe the versions with the lines highlighting the lantern beam are the earliest, although on this one the registration no. was probably in the bit thats missing!!