I have two you can choose from. First is a Salsa steel stem in black. I vaguely remember it being for 26mm bars but will have to check to be sure. Second one is an even rarer Cinelli Sesamo, in silver, which is definitely for the 26mm bars. Both are for 1" steerers. They're of different lengths though- you haven't mentioned a specific length, but if it helps both mine are quite average, but of course I can measure them or tell you the rough measurements I remember them being.
BTW the stems look better on the bike when there's no shim in use IMO:)
I have two you can choose from. First is a Salsa steel stem in black. I vaguely remember it being for 26mm bars but will have to check to be sure. Second one is an even rarer Cinelli Sesamo, in silver, which is definitely for the 26mm bars. Both are for 1" steerers. They're of different lengths though- you haven't mentioned a specific length, but if it helps both mine are quite average, but of course I can measure them or tell you the rough measurements I remember them being.
BTW the stems look better on the bike when there's no shim in use IMO:)