Nice theme... just one huge problem - to see the equipment behind theese girls...
it is the same as this picture... nothing strange here?
really?
Even driver-dog?
So,
@Open Ocean Diver thank you for this youtube channel
lest go for eqipment namings...
Scubapro MK-5 - yes.
BA-109 ... but without label in front, so - just 109 non balanced.
and central metal part with S just removed -
VDH Blog: Vintage Scubapro Regulators
Or may be 156.. or R109, anyway something from best Scubapro
Scubapro mk5 or 10?
Scubapro chrome plated brass regulators...
And non-glare front cover.
I do not know any other regulators with fixing "nail" for adjusting knob.
Yes, it looks like Russian ВР-12 (ВР-10), 2nd stage, but just looks like... It is definitelly Scubapro 109
here ВР-12 (VR-12)
There is ВР-10 (VR-10)
So... mask..
Most similar with Mares Full View
Basic gear from mid-twentieth-century Italy: Mares and Pirelli
Fins... most difficult question...
Looks (just) "like" Акванавт" (Aquanavt) from Kievguma... or Дельфин .... but no.
Most ours and many other fins has 1 middle ridge on the bottom. Fins from video has two ridges.
Also most of fins has tip of the blade just straight or like arc. But fins from video has "tonguelet".
Also fins from video has just flat upper side, without any ridges.
First I think that is Piranha
Basic gear from mid-twentieth-century France
but also it could be Dolphin from unknown... (just found in the internet)
Vtg. Pair of Children / Kids Dolphin Brand Swim / Diving Fins | eBay
so.. fins exactly non identified.
Tank - I think it is something from AL Faber. (Yellow painted, with long and fat neck)
Valve - from isolating manifold (non radial), just with stub.
Belt... (or it just full plastic backplate) from Taiwan
American components, Russian components.... ALL MADE IN TAIWAN!
but... all this equipment means nothing... just one important quesion is:
Who`s that girl????
P.S. will waiting for
@David Wilson
P.P.S while writting - David already answered