1961

These units, initially registered Bt4ü 213 - 214, are delivered between 1961/62* together with the following units: BLS unit Bt4ü 211, SEZ unit Bt4ü 212 and BN units Bt4ü 215 - 216.

*according to other sources 1963  

Sources: https://www.drehscheibe-online.de/foren/read.php?017,8429173, https://forum.spur-n-schweiz.ch/index.php?thread/9103-bls-ew-i-bt/

1969

Units Bt4ü 213 - 214 receive new registration Bt 20-33 980 - 982.  

Sources: https://www.drehscheibe-online.de/foren/read.php?017,8429173

1997

After the merger with the BLS in 1997, these units are incorporated in the new company.  

Sources: https://www.drehscheibe-online.de/foren/read.php?017,8429173

2001

Between 2001 and 2003, units Bt 980 - 981 are converted to BDt 82-33.  

Sources: https://de.wikipedia.org/wiki/BLS-Farben

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Latest update on the 23rd of October 2022 at 13:21

Contributor(s): Tudor C.

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