regulator bj
Contributor
Have started a survey of the "Merlin" MKV and "Siebe Heinke" MKV1 regulatos in trying to estimate an outline how many were constructed. By collating their respective serial numbers stamped on the units its hoped an answer might be found att.fotos of the details needed.Any help in the form of posting here or sending to my Email :-litremeter@talktalk.net would be of help thanks.