1 janv. 1820 - Iron bracing in wooden frame
Description:
Broadwood did start incorporating iron bracing into their grand pianos around the 1820s, but their approach initially involved adding iron bars to reinforce the traditional wooden frame rather than creating a full iron frame.Ajouté au bande de temps:
Date:
1 janv. 1820
Maintenaint
~ Il y a 204 ans
