The listing, Kodak Retinette has ended.
243638 to 419999 - P250S shutter
EK 830209 to EK 864999 - P250S shutter
420000 to 547925 - P300S shutter
EK 865000 to EK 870997 - P300S shutter
Lens: Schneider-Kreuznach Reomar 1:2.8/45mm
Shutter: Prontor 250S (1/30-1/250 +B), then later Prontor 300S; both with hot shoe
Note: "RETINETTE" engraved in a square font.