How's this for old equipment. From the Tampa Bay Aquarium.
The bottom is an aquarium from the early 1800.
The hand pump beside it would supply oxygen for about an hour.
The other is an Art Deco from the 1930s.
The other is a 1930-40 Marco pump when electricity first came out.
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Are they willing to part out? I'll take the hand pump for power failures ;D
Wow the tanks themselves are works of art, especially when compared to most of the ones people have today with simple black plastic trims.