CSA Approval for Petit Godin

I just found this site and I'm excited. We have a Petit Godin we brought from Germany, bought there new in 1980. Wonderful stove. We have lugged it around with us and now want to install it in our new house here in Ontario. The model # is 3720 and it looks pretty well identical to 3731 from the pictures. We have been told that this model has been CSA approved for installation here in Canada, but of course we don't have the plate saying so to satisfy the insurnce co. Anybody have any ideas how to find this info? Thanks! Pauline