No, I don't have any Schuma items. Never see them around here.
The jacket above I found like it is, complete with the shoulderboards. My first thought was when I found it that the collartabs belongs to caucasiens and not ROA, but indeed it is ROA. The jacket is a luftwaffe drillich jacket and all the emblems seems to be original attached.
About the red and white shoulderboards - they where worn by the Platov (cossack cavalry Regiment) in combination with the collartabs as on my uniform. These grey shoulderboards as on this jacket I never seen before.