We saved some engine patterns that we could find in the loft maybe 15 or more years ago when Chad wanted Rough and Tumble to put up a building for a museum. The patterns that we left were mostly general machine parts and probably were not for engines. Even then there was some water damage from a leaky roof. Of course there were hundreds of patterns there and I am sure we missed some good ones. I would be surprised if someone took the time to get them out of there.