Well the first example you have, the 89 006 (Marklin 3000) is the 89 class, based on this photo



Now, here's the really interesting part of this. There were only 10 ever built and run with the Reichsbahn until after the second world war, when 5 remained in East Germany and the other 5 sent to Poland (reparations most likely in my opinion). The last unit was retired in 1968, so technically both examples you have here, in DB livery, did not have any original prototype, so whilst the 3000 is what I would (and have always) considered the 89 class.... both technically never existed. The 3000 of course has been around since 1953 and the 3104 was for one year in 1980 (likely a cheap starter set piece or something IMHO).

Addendum - looking at the 3104 and the lack of moving parts on the wheels, I am more inclined to think it was a cheap starter set piece, but I could be wrong

Hi!
They are different classes - and from different times.
Other class numbers like 152, 182, and 220 have also been used for several different classes at different times.

At first it must be noted that there is not a single "BR 89". The exponent/part behind the dot matters.

The #3104 is "BR 89.0,1" from Prussian time (pr T 8) and inherited by DRG. Locos were retired quite early and running numbers could be reused.

The #3000/#30000 is "BR 89.0" newly designed by DRG.

The 89 066 was really used by DB. The old Prussian locos were retired by DRG, but some survived at private companies and this one made it to DB - but it probably never had the DB cookie. All the #3000/#30000 with DB cookie are fantasy liveries as the prototypes were never used by DB.


That's not BR 89, that is "BR 89.70-75" or "pr T 3".

Märklin also made models of "BR 89.3-4" recently.

Not a dumb question. Things that are unique at any point in time (like phone numbers) are not unique when looking at larger time frames or when mixing regions.

When people start with this hobby they know nothing. And they will encounter riddles that have a rather simple explanation. It's never dumb to admit having no experience in specific areas.

That didn't stop Märklin from making a 89 028 and a 89 031.

The 89 066 was actually used by DB, so there was a prototype. I'm afraid there was no prototype for a 89 066 with a DB cookie, though.

A nicer version of 89 066 in DB livery was made by Brawa.