Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_43 (built_by_hm_dockyard VARCHAR, laid_down VARCHAR)
### Question:
Which built by HM Dockyard has September 1830 as the laid down?
### Answer:
SELECT built_by_hm_dockyard FROM table_name_43 WHERE laid_down = "september 1830"