I would say G1/2 on the grounds of the little circular detail towards the bottom of the bust, but the detail is not brilliant. There are two G bust types which look like these below, with the G1 bust having the lace detail mentioned. The reverse is definitely 2 on account of the cruder cross ends. Assuming a G1 bust, these were struck in triangle, star and triangle in circle marks which cover 1639-43. The mintmark is immediately to the left of CAROLVS and off flan on the reverse above the shield. If you can see a curved arc, then T in C it is, struck 1641-3. That is the commonest mark.
It's struck in 0.925 silver, weighed approx. 6 grams when made and in that condition speaking from a numismatic point of view, worth maybe £10-15. It would have near zero appeal to a coin collector because of its condition and is worth more as part of the ladle.