Protect and Survive SFX - Attack Siren

This is the official extended version of the British Siren sound from the UK Civil Defense Film "Protect and Survive", which was published between 1974 and 1980. I'm not sure where the recorded Siren used in the Film/TV program came from, but I hope there's an original archival sound that'll show up one day. Please credit me for the extended sound in your EAS/EBS videos. Made with: - Audacity - HitFIlm Express DO NOT STEAL, COPY, FLAG (CLAIM), DESTROY, VANDALIZE (PLAGIARISE) THIS, OR ANY OF MY VIDEOS ON MY CHANNEL. Hope you enjoy and like/subscribe/comment; and I'll see you later, peace!