Vickers Viscount 700

Vickers. A turboprop airliner.

Seats
Mixed 48, Tourist 53
Range
1,700 km
Cruise
480 km/h
Payload
5,200 kg
Take off run
1,200 m
Fuel burn
780 kg per block hour
Reference price
$550,000 in 1947 dollars
Confidence
estimated (to be verified)

Source: Cruise 308 mph; up to 48 seats; BEA first scheduled service 18 April 1953; price 235,000 pounds in 1953, about 658,000 dollars at 2.80, deflated to 1947 dollars (Wikipedia, Vickers Viscount, https://en.wikipedia.org/wiki/Vickers_Viscount; Phase 1 aircraft research for the price). Range and MTOW are estimates; the page gave them only for the later Type 810.