Use of reverb and delays in '50-'60s jazz records

[Francesco Chieffo]

Hi everyone, listening to some jazz records from the 50s-60s, I'm trying to figure out what effects were applied on the tracks. I have read about the use of tape echoes by some engineers like Frank Laico of Columbia. How much and how were effects such as reverbs and delays used?
Speaking of the guitar for example, if I'm not mistaken the spring reverb in Fender amps was only introduced in the 1960s. So in the 1950s reverbs (plate maybe?) were only used in mixing?

[Hugh Robjohns]

Reverbs came from dedcated echo rooms, mostly, as well as plates and springs.

Delays were mostly from tape machines or dedicated tape or disc-based magnetic delay boxes.

[Arpangel]

I didn’t think that effects were added to Jazz recordings of the 50’s/60’s, on the whole anyway.
A good room in a studio, with the right ambience, or, live in a club.
But Hugh is right, back then all you’d really have is an echo chamber, or tape delay.

[c_tecks]

Probably the most of it is the roomsound and spring reverb.

[Guest]

room sound, lots of classic tube compression to push up the noise floor, adding to the room effect making what sounds like reverb. A lot less room padding and all those weird wood dissipaters like nowadays. Plus you should know about the Capital building basement; and the stairwell trick of the days.