The DIN standard TLF16 called for a six man crew cab, so this single cab unit is a bit unusual. It also has the old fashioned gong as well as the more modern air horns. It was obviously built with forward facing blue lights in 1956, then fitted later with beacons, without bothering to remove the original lights.
But the TTL next to it looks like it came with beacons as original equipment. Perhaps it was built with a crew cab to compensate for the lack of seating on the water tender?
It seems the 9.2 t lettering may indicate the truck's GVW. This is not a common feature of German fire appliances, but if it is indeed a 9.2 ton truck then it was a something of a hybrid.
The TLF 16/24 had a GVW around 11 tons, a 1600 LPM pump and a 2400 litre tank, with a six man cab. The smaller TLF 8/18 DIN specification was normally on an 8 ton chassis, had an 800 LPM pump, an 1800 litre tank and a two man cab.
So this example - if a 9.2 ton GVW - is almost certainly a non-normative TLF16/18, and more than a bit unusual as a result.
But the TTL next to it looks like it came with beacons as original equipment. Perhaps it was built with a crew cab to compensate for the lack of seating on the water tender?
Added by Rob Johnson on 21 February 2021.