boundary_sets: 21

This data as json

id	start_on	end_on	country_id
21	1974-02-09	1983-05-13	2

Links from other tables

0 rows from boundary_set_id in general_election_in_boundary_sets
0 rows from boundary_set_id in boundary_set_general_election_party_performances
1 row from boundary_set_id in boundary_set_legislation_items
0 rows from boundary_set_id in constituency_areas