Nautiek    
Diving Heritage   
Tank Diving    
Monte Mare indoor diving  
Melvin Oostdijk    
RNG         
Hydrogom    
Rebreathers    
Lenhardt & Wagner   

HDS GB    
HDS USA    
HDS Italy    
HDS Russia    
HDS Australia   
HDS Canada    
HDS Denmark   
HDS Spain    
HDS Sweden   
HDS France    
HDS Norway    

Desco     
Mark V information   
Mark V  imitations  
Lerios     
Morse     
Atmospheric suits   

Pieds Lourds    
Ancarola    
Brass hat diver   
Diving Helmet gallery  
Helmtauchen    
HYB diving    
Jim Boyd    
Joan Torras     
Leon Lyons 1   
Leon Lyons 2   
Leon Lyons 3  
MOAV     
Roc Roussey   
JM Castier    
Toucan 1    
Toucan 2    
Richards antique diving  
Cal Classic equipment divers 
Cal Classic org   
Pierre Chenu    

Joe Bauer 
Duikmuseum Lemmer  
Frogman museum   
Wrakmuseum Terschelling 
Helmduiken Espalion  

Duiken    
Old prints    
Books     
Book collection Boudot  
Helmet diving art 1   
Helmet diving art 2   
Aqua Toys    
Indoor diving

www.nautiekdiving.nl/
www.divingheritage.com
www.tankdiving.nl/index.htm
www.montemare.de
www.helmduiken.com/
www.rngdiving.nl/   
www.hydrogom.com/home.htm
www.therebreathersite.nl
www.lenhardt-wagner.de

www.thehds.com
www.hds.org
www.hdsitalia.com
www.hdsr.ru
www.hdsseap.org
www.hdscanada.org
www.dykkehistorisk.dk/
www.hdses.com
www.sdhf.se/
www.hdsfrance.org/
www.dykkehistorisk.no/

www.divedesco.com/catalog/index.php
www.divingmachines.com/helmets.html
www.westsea.com/tsg3/tridentlocker/markvartchart.htm
www.divinghelmets.com/
www.home.comcast.net/~dmtcd/
www.avhs.free.fr/plongee/comismer/newtsuit.htm

www.pieds-lourds.com/
www.ancarola.ch
www.brasshatdiver.com
www.sea-corps.com/hardhatdivers.htm
www.helmtaucher.de
www.hybdiving.com/
www.geocities.com/Yosemite/Rapids/3435/
www.antiquedivehelmets.com/
www.helmetsofthedeep.com
www.portagequarry.com/museum_helmets.htm
www.vulcaniasubmarine.com/LEON%20LYONS.htm
www.moav.net/
www.navalheritage.us/
www.castier.com/piela.htm
www.geocities.com/giltzowm/html/helmets101.html
www.geocities.com/giltzowm/
www.angelfire.com/tx3/antiquediving
www.geocities.com/riptide_bars/index.html
www.calclassic.org/
www.scaph25.com

www.divingmuseum.com
www.duikmuseum.nl/
www.frogmanmuseum.free.fr
www.wrakkenmuseum.nl
www.espalion-12.com/scaphandre/accueil2.htm

www.duiken.nl
www.buyhistoryprints.com/subaqua
www.underwater-books.com
www.collection-boudot.com
www.plongeeonline.com/artGIO.php
www.cafepress.com/kill_fish
www.aquatoy.nl
www.indoorduiken.nl