Inscription: 1) "48=6 sett" scratched with very fine point on underside (probably 18th century)
2) "3104, £4x/d/h,
3) ", scratched with a fine point on underside (dealer's price in a code; probably 19th or 20th century; possibly means £40, 4 shillings, eight pence, for three).
Marking: [1] Lion passant;
[2] Leopard's head crowned;
[3] i, in shield, London date letter for 1744-45;
[4] P L (script) crown above, pellet between and below