I CAME ACROSS A BOX WITH THESE PARTS AND CANNOT REMEMBER WHEN I BOUGHT THEM, PROBABLY 30 YEARS OR MORE AGO.
THERE IS A PAIR OF CRANKCASES (MATCHING PAIR) , A CASE COVER COMPLETE WITH ENGINE NUMBER AND DECOMPRESSOR LEVER, VALVE GUIDES, BRASS OIL PUMP ETC.
ALSO CRANKSHAFT LOOSELY ASSEMBLED ALTHOUGH I NOTICE A CRACK ON ONE OF THE FLYWHEELS, NOT SURE IF IT HAS ALWAYS BEEN THERE THIS IS SHOWN IN THE PICTURES AS WELL AS THE ENGINE NUMBER, STARTING WITH AN E, ALSO THE CRANKCASES ARE MATCHED WITH AN E.
FROM MY EXPERIENCE I WOULD SAY THIS WAS FROM A ROYAL ENFIELD MODEL 180 OR 190  OF AROUND 1926.
COLLECTION ONLY AS THESE PARTS ARE VERY HEAVY BUT I WILL PACKAGE FOR YOUR OWN COURIER.
PLEASE SEE MY OTHER ITEMS.