The CPI Inflation Calculator that I checked was $90.01.
However, that would only be money. If you could find one of those with a working hose today, it would easily cost hundreds.

Not German. Not in 1947. Not after Germany had been bombed flat in WW II and their industry hadn't recovered yet.
Yes, it definitely would have been a quality toy, no doubt. But still - 85 bucks!?! That's a sh!tload for a little kid, especially just coming out of a war.
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And would last one season before you had to throw it away.
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A toy firetruck that has, as described by the boy, a real hose & squirts real water probably would be around $50 today

Most likely lead and poisonous. Ha ha!

a toy like that back then would have been made out of thick metal and lasted a life time.

Yeah, a lot of money back then, but if you were to examine toys from that era, they'd prove to be worth the money. That firetruck would have most likely been American made, or perhaps German. Toys from that era were exceptionally well made and finished out, unlike the total crap that comes out of China these days. With only a little care, a toy like that would last the child's childhood, and his children's as well if he held on to it.

Yeah, it was $8.50was thinking that was a lot of money back then!!
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I am pretty sure Kris said $8.50. Per the cost index I looked at, this would be about $80 in today's dollars.