Can anyone ID these horn flares...?

Bought a job lot of horns (3 pairs), asked the guy what the throat diameter was on the two I thought might work and his reply was 'i dont know what that is' so I took a punt... and lost! Needed 2" and the two larger sets are 1". D'oh.

Anyway will probably move them on now but would be nice to get a bit more info on them, if anyone recognises them or might have an idea what cabs they came out of... especially the CD drivers, though they are quite corroded. Thanks!

Plastic ones, 345mm x 195mm
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And then the pretty large fibreglass ones 250mm x 490mm:
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and the mystery CD driver with very worn label
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And for fun ill include the third little pair (265 x 105) which ive googled and seems they arent that special but might hang on to, be fun for some smaller cabs to go over some 10"s or something.... might hang on to them for such a thing, DJ monitors or some of those micro reggae rig style cabs
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