I have a Chas.De Vocht made in Antwerp in the 30s.It was built around an Adler 3 speed bottom bracket.It is, in effect a three speed fixed gear.The paint is original,and it has the builders' phone # in the decals.I also recieved the original manual and a box of spare parts with it,including a 3 speed freewheel and a Simplex chain tensioner.Hank Cunningham,Helotes,Texas