What do you think about the value of this coin?

I think the value of on Kreuzer is adequate for this coin's size and weight. Also the quirky way it is written, not just straight and with the oldtimy tz it gives the value some charm.

It's a rare Kreuzer

What do you mean by it's worth it's size and weight!?

I think he was making a joke. 

The Krause catalog does not indicate this is an especially rare date/mint combination:  https://www.ngccoin.com/price-guide/world/austria-kreuzer-km-2007-1749-1765-cuid-1050240-duid-1221227

The only sale I can find is part of a large lot where the average price/coin is about $17 (consistent with Krause):  https://www.numisbids.com/sale/2350/lot/?lot=919