Hamburg Steinway?

[Newton Hunt]

During that period the vast majority of Hamburg S&S had only two
pedals.

S&S NY can tell you where it was made by the serial number.

There are numerous clues when you pull the action.  Action screws are
different, shanks are different, hammers are different, wippens are
finely finished, keys are different.  They essentially are not the
same piano as NY because they did not use parts imported form NY but
those made my Renner.

Older S&S plates had New York and Hamburg cast in the plate.  

There are so many difference that you will be able to tell immediately
what it is.  Europeans do use vertically oriented veneers inside the
rim and NY does mostly horizontally.  Europeans rare paint inside rim
veneer the same color as the outside.

Luck.

		Newton