Table:
text: Donnerbüchse
Iron coaches
Iron coaches
Class_to_1928 Class_from_1928 Seats Quantity Years_of_Manufacture Remarks
Bi-21 Bi-21 40 10 1921/23 Trial coaches
BCi-21 BCi-21 16/34 10 1921/23 Trial coaches
BDi-21 BCid-21 16/39 10 1923 Trial coaches
Ci-21 Ci-21 58 10 1923 Trial coaches
Di-21b Cid-21b 66 50 1922 Trial coaches

Question: What is the average number of 40-seat carriages manufactured in 1921/23 among the blunderbuss iron carriages?

Question: Which series up to 1928 had the year of construction 1921/23 and which series from 1928 the BCi-21 for Donnerbüchse's iron wagons?

Question: What is the smallest amount with a class up to 1928 of BDi-21 among the iron carriages of blunderbuss?

Question: Which class of blunderbusses from 1928 to 1928 was the class of the BDi-21 of the iron wagons?

Question: What were the remarks for the 1928 class car of Cid-21B among the blunderbuss iron cars?