I grew up with an old piano in the house and it was a "Grotian Steinweg" upright with very elaborate, beautiful carved woodwork with all sorts of rosewood and burl panels and inlays on it and two bronze candelabras mounted on it's front panel. My grandfather bought it for his house in the 20's and my dad inherited it from him after he died.
The "Steinweg" name on it confused a lot of people, causing them to assume it was a "Steinway". It turns out that they were competitors in the high end German piano market.. But I always found the "Grotian Steinweg" name more impressive sounding than "Steinway" because you just don't see or hear too much about them.
It's really neat to see the unusual piano's name again..... Thanks for posting your piano on the forum!