I can't be sure, but I think there were 3
Miss Winnipesaukee speedboats over the years. The modern picture shows an "Upswept" (Foredeck) Chris Craft...everything else looks correct...other than the name is misplaced on the side of the boat.
The Post Card..doesn't look like an "Upswept"...but the angle of the photo might explain the difference. The people I know that do replicas are usually very particular when it comes to "Replicating" the original.
NB