"Big Mystery"

[KarenO]

Asking for your collective opinion regarding the identification of this tomato.
The story goes the seed was collected and given to me with no information other than it came from a big round pink tomato which had been grown in a private garden near Edmonton by an elderly man who had been growing it for years. I have looked at many varieties on the internet in an attempt to identify it but haven't found anything quite matching it. To describe it, It is a very big and vigorous regular leaf plant. midseason producing large, uniform pink tomatoes with a very uniform slightly ribbed round, not flattened shape. dryish, meaty, minimal seeds, very mild almost bland(IMO) flavor. some photos follow. Anyone? I call it "Big Mystery" because I don't know what it is.It is also very stable. Always produces uniform tomatoes as shown. I have collected and grown seed and it is the very same in subsequent generations.