All the answers are in £s, shillings or pence. No two values are the same. Some of the answers are slang and some lateral thinking is required.

Poundsshillingspence
1A stone14--
2The first bicylcle1 1/4
3Robert1-
4A type of singer10--
5A kind of pig11-
6A leather worker6
7Mid part of a gorilla's knee1/2
8The Sun, Mars and Pluto3/4
950% of a pair of women's pants5-
10A Royal headdress5-
11Hit repeatedly1--
121.6 oz2-
13A girl's name1
1450% of a coronet26
15Known as the "barmaid's grief"4-
16A Young kangaroo3
Total2766 1/2