Cook potatoes with skins on at a slow boil for 1 hour.
Cool potatoes with cold water, then cut into 1/8ths.
In a separate container, add together finely diced onions and celery, pepper, salt, seasoning salt, sour cream, mayonnaise and red wine vinegar. Mix well.
Add contents of separate container to the potatoes and mix thoroughly.
Chill before serving.Makes 8 Source: