Flashers for signal lights on an S2 OTS

This car was dismantled by my PO, and I recvd many disorderly packed boxes !! Many years later I am restoring it and i am now at the stage of installing the external electrical fittings . I have the rear electricals done and I am now on the side markers. I have 3 electrical flashers, 2 have 2 eletrical tabs , and the gold one has 3. I wondered if any of them is/are

relevant to this car !!!

The rectangular one is for the hazard lamps and fits a socket behind the center dash panel, center and forward against the firewall.

The short round one has the correct number (3) of prongs for a turn signal flasher though the original Lucas unit would have been longer like the other one.

The short one may work fine, no idea what the one with 2 prongs is for unless the 3AW has just 2 prongs (can’t recall and am still abed).

As George says the two round ones are aftermarket but the one with 3 prongs should work just fine.

The hazard flasher is a nice piece of originality; not often seen on cars so hang onto it!

Yes, a nice touch of originality - though apparently it was used on several American cars and comes up often on eBay. Sometimes for silly money but sometimes more reasonable ($14 shipped):

https://www.ebay.com/itm/Signal-stat-175-turn-signal-flasher-Chevrolet-Pontiac-Buick-Oldsmobile/383136512589?hash=item5934b73a4d&_trkparms=ispr%3D1&enc=AQAEAAADEKvsXIZtBqdkfsZsMtzFbFsbX3WcW5fmB%2Fx7ZbaZTyex4zU06%2BLdBWVd79IO5kPJf%2BSQIGAA3M76UvdA6wQ7W%2FtxyqVRtQqc1Z2CRbFWu8Qj%2BiQxtGgqK63oLT2%2Ffh1VFQq0L%2FSkbBg0AhJ1ZOTp6p4KSCluyfb%2BIzvIjwo7G3EYEZurgA7ZHeCnlf1rfjuL7FrCzfjsmVSRqkPxM7DFxSIIkQAuIm%2B87GMvPQ7vFg0ovwnuqQdcCbBPQ%2Be5MKoQAQu2gvCbmbMr3OhOZnqdPDTIkratxi1KGcFiJMulL%2Bt7BgbBYESLsOfdYywC6cgbI%2F5Omu6Ii0Mfrk7L2yTIkZBaJZbE6FXQKuSlTGEpxiqHmcnF7kSvFLgFjK46j4vbbyt8BMzvfWBbkvi2pHoYQ1fMm5dNhSvSjgxqAE0WETGihwLNHexnH9CrFK8CLetiKjucTs0PBPtKRclirFJa4VDeAywnHq%2Bjq1EhI%2Fnm3laNDAPA5xtNYX8EW%2BC0nTo3RlNhrkwZ50%2B74YJdPgdf6v5P9N6AgKvVPCuaYH5fkAuvJ4m7G9zyN4QnDqxHcL%2FPIzuaWtY0STFnj%2FfouaKsIU6CoSTqyvEwu05YA2NZdnwkACMndTn%2B1sub6n6vPrOgvlN7Ybiq%2FuZ2ytpV8XUMx2Pd3MeX%2BUPFUZ6CI8A9IkHKCU8GOpiGWRiQORzaZc5ZgiNiKsYIh3Gfa9n6vie%2BZTPcZhRoxhBbJxQwDvvFcYU4au3AfMpIKYXObxTO643FQmDQih3Dsj1vS1Xg6o9Pmezo3B7rny0mMNUzFntM9OWaXCQ4%2BHgODbwa0sfoFZcPEoEzrpPVXUd3MdmhkKykg0H%2F1gy78%2BC7m6Oo5MUcrlb7vMhreziBLgHy%2Fxx6x5KYsTx0kUC2AAcn1umjnh5mdnvk8AtJVhFSW5zhtlxKf0U9PRhiXA5Nx9IXvrUh774nTdGwHnkw%2FFm85IP7Ir%2FqN0Oa7MH7vl7EMEu03wfJj%2BBcaG1ydfzSVX5dMAvzpS2Dh1oy4bgTtnxnx6Rybo8k3Us%3D&checksum=383136512589e60a656855d04311867c3e8f82614a7a