Hey Matt and Brian, did this pic while coming home from a week holiday and leaving for the second week, so hence my late reply ...

SSR rifles receiver is (only) 359 accepted on right side, t-block (so very late for 42). Receiver markings are italic written hand letters (whatever the proper English term is, I guess you know what I mean). All matching numbers, non-shortened safety, no modern firing proofs or reworks in any way. Stock had been properly cut in the Sauer fashion only milling off the part required and leaving a thin wood partially covering the base.