Table:
text: Bavarian Ludwig Railway
Locomotives and carriages
Locomotives and carriages
Name_ Design Manufacturer Acquired Disposed
Adler 1A1 Stephenson 1835 1835 sold 1857
Pfeil 1A1 Stephenson 1836 1836 sold
Nürnberg-Fürth 1A1 Henschel 1852/14 1852 scrapped 1889
Phoenix 1A1 Maffei 1853/127 1853 scrapped 1869
Adler II 1A1 Maffei 1857/279 1857 scrapped 1889
Johannes Scharrer 1A1 Henschel 1865/108 1865 scrapped 1887
Faust 1A1 Maffei 1845/6 1872 scrapped 1881
Henlein 1A1 Maffei 1845/8 1873 scrapped 1880
Wallenstein 1A1 Kessler 1845/30 1875 scrapped 1885
Bavaria Bn2t Maffei 1879/1204 1879 sold 1923
Pegnitz Bn2t Maffei 1880/1224 1880 sold 1923
Franconia Bn2t Maffei 1881/1248 1881 sold 1923
Daniel Ley 1Bn2t Maffei 1886/1414 1886 sold 1923

Question: What is the average year for Wallenstein with 1a1 execution at the Bayerische Ludwigsbahn?

Question: Which type of the Bavarian Ludwigsbahn was acquired in 1875?