With special thanks to diving equipment designer and diving historian Peter Katz.
Helmet JP
Jaroslav Prediger who was also working for Aquacentrum further modified the SPP50 helmet by reducing its internal volume. He made just one helmet which is known as the ‘JP’ helmet.
‘DiveScrap’Index
the scrapbook of diving history
Do you have images you want to share then please send them to: david@divinghelmet.nl Thank you.