Therefore I think he bought it because of the letters BBMF 20. It was made in 1984, as is embossed on the outside by the microphone.
eBay
1/6 fullbody Jet pilots with helmet 1/6 Scale RC Airplane Pilot Figure Model
Aliexpress UK
eBay
Hasbro Star Wars The Black Series Poe Dameron Electronic X-Wing Pilot Helmet with Movable Visor & BB-8 Sound Effect Gift C1441
Aliexpress UK
What you see is what you get.
eBay
German Motorbike PU Leather Motorcycle Helmet Open Face Half Helmet Chopper Biker Pilot Black Helmet with Free Goggle
Aliexpress UK
eBay
Star-Wars Cos Mask Cosplay 2MAY-RD Fighter Pilot Wearable Helmet Halloween Comic-Con Party Carnival Props Adult Man Gift Man
Aliexpress UK
You can fly into the Blue skies at G-force speed at high altitude! Produced in very low quantity. it is preserved excellent!
eBay
1:18 Scale Special Forces Soldier Accessory Helmet Hat Pilot Combat Cap Suitable For 3.75" Action Figure DIY Collection Display
Aliexpress UK
Visor with knob and can be moved up and down. We will try our best to solve the problem and provide amicable solution. - Professionally Handmade. Item Condition. Enjoy your hobby and make it a reality.
eBay
Hot Sales DID MA80182 Scale 1/6 American US. Pilot Handsome Guy Friend Tom Cruise Helmet Bodysuit Shoe Coat Accessories For 12"
Aliexpress UK
Fully wearable with inner padding for comfort. High-quality resin construction for authentic weight and feel. Fits Adults & Children –.
eBay
Not sure on date of helmet but it’s good condition as you can see in the photos
eBay