Tower style hose clamps used on pollution systems

[68blk500c]

Another example; just one of many I have seen, and not necessarily early. As you can the date of 01048.
(posted incorrectly under radiator hose topic; sorry)

[68blk500c]

^^^

[J_Speegle]

^^^

Yes that is the short hose from pump to valve mentioned earlier and where the towers were typically used. Nice shot