Del. Code tit. 29, § 9015B

The bonds filed and recorded in the offices of the recorders of deeds in this State shall at the time designated in this subchapter be marked by the recorder “cancelled” and under the word “cancelled” the recorder shall sign the recorder’s name as recorder and shall affix the official seal of office. The bond filed and recorded in the offices of the Prothonotaries of the Superior Courts in this State shall at the time designated in this subchapter be marked by the Prothonotary “cancelled” and under the word “cancelled” the Prothonotary shall sign the Prothonotary’s name as Prothonotary and shall affix the official seal of office, and the original bonds shall be returned to the obligors, or if they are deceased, to their legal representatives.