2 more cents....everthing on your bike is period correct, right down to the "Wald" front basket...
Only thing thing that looks replaced are those pedals....they shouldn't have reflectors in them....not until 1971
Having a 3 peice crank probably puts you @ 9/16" threaded pedals too...lots of...
As far as I know, or could dig up these bikes ran from 1960-1963...
As the previous posting of an advertisement reads...
Frame: Short coupled lady back
Forks: Heavy duty tandem design
Crank: Three peice cottered type
Wheels: Heavy duty tandem 26" x 1 1/2" S-4 rims (look for a stamping on...
While growing up in NYC a childhood freind had a Vintage 3 Wheeled Box Truck Delivery bike / A reverse tricycle with a huge steel box over the front (two wheeled axle)...
These were generally used for Grocery deliveries, which was common practice decades ago.
The exact bike is in a Robin...