I know these may be common to most collector's, but this is the first one i have found.
Full text read's.
Lillicrap's Hone
Made in England
Patent no. 346057
R G D. NO. 756950
France Brevet. NO. 70800
D.R.G.M. 1148563
Patented throughout the world
On the outer rim text read's, New Zealand Pat No 66000, India Pat No 17558, S, Africa Pat No140/31, Australia Pat No 864/81.